SMS Nassau

{{Main|Nassau-class battleship}}

Design work on the {{lang|de|Nassau}} class began in late 1903 in the context of the Anglo-German naval arms race; at the time, battleships of foreign navies had begun to carry increasingly heavy secondary batteries, including Italian and American ships with {{cvt|20.3|cm|0}} guns and British ships with {{cvt|23.4|cm}} guns, outclassing the previous German battleships of the {{sclass|Deutschland|battleship|4}} with their {{cvt|17|cm}} secondaries. German designers initially considered ships equipped with {{cvt|21|cm}} secondary guns, but erroneous reports in early 1904 that the British {{sclass|Lord Nelson|battleship|1}}s would be equipped with a secondary battery of {{cvt|25.4|cm|0}} guns prompted them to consider an even more powerful ship armed with an all-big-gun armament consisting of eight {{cvt|28|cm}} guns. Over the next two years, the design was refined into a larger vessel with twelve of the guns, by which time Britain had launched the all-big-gun battleship {{HMS|Dreadnought|1906|6}}.{{sfn|Dodson|pp=72–75}}

File:Nassau-class plan and profile.png

{{lang|de|Nassau}} was {{convert|146.1|m|ftin|abbr=on|0}} long, {{convert|26.9|m|ftin|abbr=on}} wide, and had a draft of {{convert|8.9|m|ftin|abbr=on|0}}. She displaced {{convert|18873|t|LT|sp=us|lk=on}} with a normal load, and {{convert|20535|t|LT|abbr=on}} fully laden. She had a flush deck and a ram bow, a common feature for warships of the period. {{lang|de|Nassau}} had a fairly small superstructure, consisting primarily of forward and aft conning towers. She was fitted with a pair of pole masts for signaling and observation purposes. The ship had a crew of 40 officers and 968 enlisted men.{{sfn|Gröner|p=23}}{{sfn|Campbell & Sieche|p=140}}

{{lang|de|Nassau}} retained 3-shaft triple expansion engines instead of the more advanced turbine engines. Steam was provided to the engines by twelve coal-fired water-tube boilers, which were vented through two funnels. Her propulsion system was rated at {{convert|22000|PS|ihp kW|lk=on}} and provided a top speed of {{convert|20|kn|lk=in}}. She had a cruising radius of {{convert|8300|nmi|lk=in}} at a speed of {{convert|12|kn}}.{{sfn|Gröner|p=23}}{{sfn|Campbell & Sieche|p=140}}{{efn|This type of machinery was chosen at the request of both Admiral Alfred von Tirpitz and the Navy's construction department; the latter stated in 1905 that the "use of turbines in heavy warships does not recommend itself."{{sfn|Herwig|pp=59–60}} This decision was based solely on cost: at the time, Parsons held a monopoly on steam turbines and required a 1 million gold mark royalty fee for every turbine engine made. German firms were not ready to begin production of turbines on a large scale until 1910.{{sfn|Staff Vol. 1|pp=23, 35}}}}

{{lang|de|Nassau}} carried a main battery of twelve 28 cm SK L/45 gun{{efn|In Imperial German Navy gun nomenclature, "SK" ({{lang|de|Schnelladekanone}}) denotes that the gun quick firing, while "L/45" provides the length of the gun regarding the diameter of the barrel. In this case, the L/45 gun is 45 caliber, which means that the gun is 45 times as long as its diameter.{{sfn|Grießmer|p=177}}}} guns in six gun turrets arranged in an unusual hexagonal configuration. One was placed forward, another toward the stern, and the remaining four were placed on the wings, two per broadside. Her secondary armament consisted of twelve 15 cm SK L/45, mounted in casemates located amidships. Close-range defense against torpedo boats was provided by a tertiary battery of sixteen 8.8 cm SK L/45 naval gun, which were also mounted in casemates.{{sfn|Gröner|p=23}} The ship was also armed with six {{convert|45|cm|in|abbr=on|1}} submerged torpedo tubes. One tube was mounted in the bow, another in the stern, and two on each broadside, on either ends of the torpedo bulkhead.{{sfn|Campbell & Sieche|p=140}}

The ship's hull was protected by heavy armor plate consisting of Krupp cemented steel. The belt armor along the sides of the hull was {{cvt|11.5|in|cm|order=flip}} thick in the central portion, tapering down to {{cvt|4|in|cm|order=flip}} at the bow. The belt was reinforced by an armored deck that angled downward at the sides to connect to the bottom edge of the belt. The deck was {{cvt|1.5|in|cm|order=flip}} on the flat portion, while the sloped sides increased in thickness to {{cvt|2.3|in|cm|order=flip}}. {{lang|de|Nassau}}{{'}}s main battery turrets had 28 cm of Krupp steel on their faces. Her forward conning tower had {{cvt|30|cm|1}} of armor plate on the sides, while the aft tower received only {{cvt|20|cm|1}} on the sides.{{sfn|Gröner|p=23}}{{sfn|Campbell 1977|pp=13–14}}

File:German battleship SMS Nassau NH 46828.jpg

{{lang|de|Nassau}} was ordered under the provisional name {{lang|de|Ersatz Bayern}}, as a replacement for the old {{sclass|Sachsen|ironclad|2}} {{SMS|Bayern|1878|2}}. She was laid down on 22 July 1907 at the {{lang|de|Kaiserliche Werft}} in Wilhelmshaven, under construction number 30.{{sfn|Gröner|p=23}} Construction work proceeded under absolute secrecy; detachments of soldiers were tasked with guarding the shipyard itself, as well as contractors that supplied building materials, such as Krupp.{{sfn|Hough|p=26}} The ship was launched on 7 March 1908; she was christened by Princess Hilda of Nassau, and the ceremony was attended by Kaiser Wilhelm II and Prince Henry of the Netherlands, representing his wife's House of Orange-Nassau.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=135}}

Fitting-out work was delayed significantly when a dockyard worker accidentally removed a blanking plate from a large pipe, which allowed a significant amount of water to flood the ship. The ship did not have its watertight bulkheads installed, so the water spread throughout the ship and caused it to list to port and sink {{convert|1.6|m|abbr=on}} to the bottom of the dock. {{lang|de|Nassau}} had also not had her bilge pumps installed yet, which delayed repairs. The ship had to be pumped dry and cleaned out, which proved to be a laborious task.{{sfn|Staff Vol. 1|p=23}}{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=135}} The ship was completed by the end of September 1909. She was commissioned into the High Seas Fleet on 1 October 1909,{{sfn|Gröner|p=23}} and sea trials commenced immediately.{{sfn|Staff Vol. 1|p=23}} Her first commander was {{lang|de|Kapitän zur See}} (KzS—Captain at Sea) Christian Schütz.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=133}}

On 16 October 1909, {{lang|de|Nassau}} and her sister {{SMS|Westfalen||2}} participated in a ceremony for the opening of the new third entrance in the Wilhelmshaven Naval Dockyard.{{sfn|Staff Vol. 1|pp=23–24}} They took part in the annual maneuvers of the High Seas Fleet in February 1910 while still on trials. {{lang|de|Nassau}} finished her testing and evaluation on 3 May and joined I Battle Squadron of the High Seas Fleet, replacing the old pre-dreadnought battleship {{SMS|Kaiser Karl der Grosse||2}}.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=136}} Over the next four years, the ship participated in the regular series of squadron and fleet maneuvers and training cruises.{{sfn|Staff Vol. 1|p=24}} Immediately after entering service in May, Nassau and the rest of the fleet conducted training maneuvers in the Kattegat. These were in accordance with Holtzendorff's strategy, which envisioned drawing the Royal Navy into the narrow waters there. The annual summer cruise was to Norway, and was followed by fleet training, during which another fleet review was held in Danzig on 29 August.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 2|p=240}} In September, KzS Gisberth Jasper relieved Schütz as the ship's captain.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=133}} A training cruise into the Baltic followed at the end of the year.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 2|p=241}}

File:First and second battleship squadrons and small cruiser of the - NARA - 533188-2 restored.jpg in Kiel before the war]]

In March 1911, the fleet conducted exercises in the Skagerrak and Kattegat. {{lang|de|Nassau}} and the rest of the fleet received British and American naval squadrons at Kiel in June and July. The year's autumn maneuvers were confined to the Baltic and the Kattegat. Another fleet review was held afterward, during the exercises for a visiting Austro-Hungarian delegation that included Archduke Franz Ferdinand and Admiral Rudolf Montecuccoli.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 2|pp=241–242}} {{lang|de|Nassau}} won the Kaiser's {{lang|de|Schießpreis}} (Shooting Prize) for excellent shooting in the 1911 training year.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=136}} In mid-1912, due to the Agadir Crisis, the summer cruise was confined to the Baltic, to avoid exposing the fleet during the period of heightened tension with Britain and France.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 2|pp=242–243}} KzS Ludolf von Uslar took command of the ship in October. {{lang|de|Nassau}} won the {{lang|de|Schießpreis}} for a second time in 1912.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|pp=133, 136}} A training cruise in the Baltic took place late in the year. The training program for 1913 proceeded in much the same pattern as in previous years.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 2|p=243}}

On 14 July 1914, the annual summer cruise to Norway began. The threat of war caused Kaiser Wilhelm II to cancel the cruise after two weeks, and by the end of July the fleet was back in port.{{sfn|Staff Vol. 1|p=11}} War between Austria-Hungary and Serbia broke out on the 28th, and in the span of a week all of the major European powers had joined the conflict.{{sfn|Heyman|p=xix}}

{{lang|de|Nassau}} participated in most of the fleet advances into the North Sea throughout the war.{{sfn|Staff Vol. 1|p=26}} The first operation was conducted primarily by Rear Admiral Franz von Hipper's battlecruisers; the ships bombarded the English coastal towns of Scarborough, Hartlepool, and Whitby on 15–16 December 1914.{{sfn|Tarrant|p=31}} A German battlefleet of 12 dreadnoughts—including {{lang|de|Nassau}}—and eight pre-dreadnoughts sailed in support of the battlecruisers. On the evening of 15 December, they came to within {{convert|10|nmi|abbr=on}} of an isolated squadron of six British battleships. Skirmishes in the darkness between the rival destroyer screens convinced the German fleet commander, Admiral Friedrich von Ingenohl, that the entire Grand Fleet was deployed before him. Under orders from the Kaiser to not risk the fleet, Ingenohl broke off the engagement and turned the battlefleet back towards Germany.{{sfn|Tarrant|pp=31–33}}

{{lang|de|Nassau}} next took part in the fleet advance on 24 January 1915 to support I Scouting Group after it had been ambushed by the British 1st and 2nd Battlecruiser Squadrons during the Battle of Dogger Bank, though she again saw no action, as the battle had ended before the High Seas Fleet arrived late in the afternoon.{{sfn|Massie|pp=375–404}} Following the loss of the armored cruiser {{SMS|Blücher}} at the Battle of Dogger Bank, the Kaiser removed Ingenohl from his post on 2 February. Admiral Hugo von Pohl replaced him as commander of the fleet.{{sfn|Tarrant|pp=43–44}} Pohl conducted a series of fleet advances in 1915 in which {{lang|de|Nassau}} took part; in the first one on 29–30 March, the fleet steamed out to the north of Terschelling and return without incident. Another followed on 17–18 April, where the fleet covered a mining operation by II Scouting Group. Three days later, on 21–22 April, the High Seas Fleet advanced towards the Dogger Bank, though again failed to meet any British forces. The fleet next went to sea on 29–30 May, advancing as far as Schiermonnikoog before being forced to turn back by inclement weather. On 10 August, the fleet steamed to the north of Helgoland to cover the return of the auxiliary cruiser {{SMS|Meteor|1914|2}}.{{sfn|Staff Vol. 2|p=15}} That month, KzS Max Köthner replaced Uslar as {{lang|de|Nassau}}{{'}}s captain.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=133}}

{{Main|Battle of the Gulf of Riga}}

File:SMS Nassau.png

In August 1915, the German fleet attempted to clear the Gulf of Riga to facilitate the capture of Riga by the German Army. To do so, the German planners intended to drive off or destroy the Russian naval forces in the area, which included the pre-dreadnought battleship {{ship|Russian battleship|Slava||2}} and a number of gunboats and destroyers. The German naval force would also lay a series of minefields in the northern entrance to the gulf to prevent Russian naval reinforcements from being able to enter the area. The fleet that assembled for the assault included Nassau and her three sister ships, the four {{sclass|Helgoland|battleship|2}}s, and the battlecruisers {{SMS|Von der Tann||2}}, {{SMS|Moltke||2}}, and {{SMS|Seydlitz||2}}. The force would operate under the command of now-Vice Admiral Hipper. The eight battleships were to provide cover for the forces engaging the Russian flotilla. The first attempt on 8 August was unsuccessful, as it had taken too long to clear the Russian minefields to allow the minelayer {{SMS|Deutschland|1914|2}} to lay a minefield of her own.{{sfn|Halpern|pp=196–197}}

On 16 August 1915, a second attempt was made to enter the gulf: {{lang|de|Nassau}} and {{lang|de|Posen}}, four light cruisers, and 31 torpedo boats managed to breach the Russian defenses.{{sfn|Halpern|p=197}} On the first day of the assault, the German minesweeper T 46 was sunk, as was the destroyer V 99. The following day, {{lang|de|Nassau}} and {{lang|de|Posen}} engaged in an artillery duel with {{lang|ru|Slava}}, resulting in three hits on the Russian ship that forced her to retreat. By 19 August, the Russian minefields had been cleared, and the flotilla entered the gulf. Reports of Allied submarines in the area prompted the Germans to call off of the operation the following day.{{sfn|Halpern|pp=197–198}} {{lang|de|Nassau}} and {{lang|de|Posen}} remained in the Gulf until 21 August, and while there assisted in the destruction of the gunboats {{ship|Russian gunboat|Sivuch|1907|2}} and {{ship|Russian gunboat|Korietz||2}}.{{sfn|Staff Vol. 1|p=24}} Admiral Hipper later remarked that,

"To keep valuable ships for a considerable time in a limited area in which enemy submarines were increasingly active, with the corresponding risk of damage and loss, was to indulge in a gamble out of all proportion to the advantage to be derived from the occupation of the Gulf before the capture of Riga from the land side."{{sfn|Halpern|p=198}}

By the end of August {{lang|de|Nassau}} and the rest of the High Seas Fleet had returned to their anchorages in the North Sea. The next operation conducted was a sweep into the North Sea on 11–12 September, though it ended without any action. Another sortie followed on 23–24 October during which the German fleet did not encounter any British forces.{{sfn|Staff Vol. 1|p=31}} In November, KzS Robert Kühne relieved Köthner aboard {{lang|de|Nassau}}, though he would remain in command for just three months.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=133}}

On 12 January 1916, Admiral Reinhard Scheer replaced Pohl as the fleet commander; Scheer continued the aggressive fleet strategy of his predecessors.{{sfn|Staff Vol. 2|p=15}} On 4 March 1916, {{lang|de|Posen}}, {{lang|de|Nassau}}, {{lang|de|Westfalen}}, and {{lang|de|Von der Tann}} steamed out to the Amrumbank to receive the auxiliary cruiser {{SMS|Möwe|1914|2}}, which was returning from a raiding mission.{{sfn|Staff Vol. 1|p=33}} {{lang|de|Nassau}} was present during the fleet advance on 5–7 March, though this too ended without action. Further sorties were conducted on 26 March, 2–3 April, and 21–22 April, but none resulted in action with British forces.{{sfn|Staff Vol. 2|p=15}} A bombardment mission followed two days later; {{lang|de|Westfalen}} joined the battleship support for Hipper's battlecruisers while they attacked Yarmouth and Lowestoft on 24–25 April.{{sfn|Staff Vol. 1|p=31}} During this operation, the battlecruiser {{lang|de|Seydlitz}} was damaged by a British mine and had to return to port prematurely. Due to poor visibility, the operation was soon called off, leaving the British fleet no time to intercept the raiders.{{sfn|Tarrant|pp=52–54}}

File:Map of the Battle of Jutland, 1916.svg

{{Main|Battle of Jutland}}

{{lang|de|Nassau}} took part in the inconclusive Battle of Jutland on 31 May – 1 June 1916, in II Division of I Battle Squadron. For the majority of the battle, I Battle Squadron formed the center of the line of battle, behind Rear Admiral Behncke's III Battle Squadron, and followed by Rear Admiral Mauve's elderly pre-dreadnoughts of II Battle Squadron. {{lang|de|Nassau}} was the third ship in the group of four, behind {{lang|de|Rheinland}} and ahead of {{lang|de|Westfalen}}; {{lang|de|Posen}} was the squadron's flagship.{{sfn|Tarrant|p=286}} When the German fleet reorganized into a nighttime cruising formation, the order of the ships was inadvertently reversed, and so {{lang|de|Nassau}} was the second ship in the line, astern of {{lang|de|Westfalen}}.{{sfn|Tarrant|p=203}}

Between 17:48 and 17:52, eleven German dreadnoughts, including {{lang|de|Nassau}}, engaged and opened fire on the British 2nd Light Cruiser Squadron; {{lang|de|Nassau}}{{'}}s target was the cruiser {{HMS|Southampton|1912|2}}. {{lang|de|Nassau}} is believed to have scored one hit on Southampton, at approximately 17:50 at a range of {{convert|20100|yd|m|abbr=on}}, shortly after she began firing. The shell struck Southampton obliquely on her port side, and did not cause significant damage.{{sfn|Campbell 1998|p=54}} {{lang|de|Nassau}} then shifted her guns to the cruiser {{HMS|Dublin|1912|2}}; firing ceased by 18:10.{{sfn|Campbell 1998|p=99}} At 19:33, {{lang|de|Nassau}} came into range of the British battleship {{HMS|Warspite|03|2}}; her main guns fired briefly, but after the 180-degree turn by the German fleet, the British ship was no longer within reach.{{sfn|Campbell 1998|p=154}}

{{lang|de|Nassau}} and the rest of I Squadron were again engaged by British light forces shortly after 22:00, including the light cruisers {{HMS|Caroline|1914|2}}, {{HMS|Comus|1914|2}}, and {{HMS|Royalist|1915|2}}. {{lang|de|Nassau}} followed her sister {{lang|de|Westfalen}} in a 68° turn to starboard in order to evade any torpedoes that might have been fired. The two ships fired on Caroline and Royalist at a range of around {{convert|8000|yd|m|abbr=on}}.{{sfn|Campbell 1998|p=257}} The British ships turned away briefly, before turning about to launch torpedoes.{{sfn|Campbell 1998|pp=257–258}} Caroline fired two at {{lang|de|Nassau}}; the first passed close to her bows and the second passed under the ship without exploding.{{sfn|Campbell 1998|p=258}}

File:HMSSpitfireJutlanddamage.jpg

At around midnight on 1 June, the German fleet was attempting to pass behind the British Grand Fleet when it encountered a line of British destroyers. {{lang|de|Nassau}} came upon the destroyer {{HMS|Spitfire|1912|2}}, and in the confusion, attempted to ram her. Spitfire tried to evade, but could not maneuver away fast enough, and the two ships collided. {{lang|de|Nassau}} fired her forward 11-inch guns at the destroyer. They could not depress low enough for {{lang|de|Nassau}} to be able to score a hit; nonetheless, the blast from the guns destroyed Spitfire{{'}}s bridge. At that point, Spitfire was able to disengage from {{lang|de|Nassau}}, and took with her a 6 m (20 ft) portion of {{lang|de|Nassau}}{{'}}s side plating. The collision disabled one of {{lang|de|Nassau}}{{'}}s 15 cm (5.9 in) guns, and left a 3.5 m (11.5 ft) gash above the waterline; this slowed the ship to {{convert|15|kn}} until it could be repaired.{{sfn|Tarrant|p=220}} During the confused action, {{lang|de|Nassau}} was hit by two {{convert|4|in|cm|abbr=on}} shells from the British destroyers, which damaged her searchlights and inflicted minor casualties.{{sfn|Campbell 1998|p=287}}

Shortly after 01:00, {{lang|de|Nassau}} and {{SMS|Thüringen||2}} encountered the British armored cruiser {{HMS|Black Prince|1904|2}}. {{lang|de|Thüringen}} opened fire first, and pummeled Black Prince with a total of 27 heavy-caliber shells and 24 shells from her secondary battery. {{lang|de|Nassau}} and {{SMS|Ostfriesland||2}} joined in, followed by {{SMS|Friedrich der Grosse|1911|2}}. The heavy fire quickly disabled the British cruiser and set her alight; following a tremendous explosion, she sank, taking her entire crew with her.{{sfn|Tarrant|p=225}} The sinking Black Prince was directly in the path of {{lang|de|Nassau}}; to avoid the wreck, the ship had to steer sharply towards III Battle Squadron. It was necessary for {{lang|de|Nassau}} to reverse her engines to full speed astern to avoid a collision with {{SMS|Kaiserin||2}}. {{lang|de|Nassau}} briefly lost contact with the rest of the battle fleet in the darkness, but she soon fell back into a position between the pre-dreadnoughts {{SMS|Hessen||2}} and {{SMS|Hannover||2}}.{{sfn|Tarrant|p=225}}{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|pp=136–137}} At around 03:00, several British destroyers attempted another torpedo attack on the German line. At approximately 03:10, three or four destroyers appeared in the darkness to port of {{lang|de|Nassau}}; at a range of between {{convert|5500|yd|m|abbr=on}} to {{convert|4400|yd|m|abbr=on}}, {{lang|de|Nassau}} briefly fired on the ships before turning away 90° to avoid torpedoes.{{sfn|Campbell 1998|p=300}}

Following her return to German waters, {{lang|de|Nassau}}, her sisters {{lang|de|Posen}} and {{lang|de|Westfalen}}, and the {{lang|de|Helgoland}}-class battleships {{SMS|Helgoland|1909|2}} and {{lang|de|Thüringen}}, took up defensive positions in the Jade roadstead for the night.{{sfn|Tarrant|p=263}} In the course of the battle, {{lang|de|Nassau}} was hit twice by secondary shells, though these hits caused no significant damage.{{sfn|Tarrant|p=296}} Her casualties amounted to 11 men killed and 16 men wounded.{{sfn|Tarrant|p=298}} During the course of the battle, she fired 106 main battery shells and 75 rounds from her secondary guns.{{sfn|Tarrant|p=292}} Repairs were completed quickly, and {{lang|de|Nassau}} was back with the fleet by 10 July 1916.{{sfn|Campbell 1998|p=336}}

File:SMS Nassau illustration.jpg

Another fleet advance followed on 18–22 August, during which the I Scouting Group battlecruisers were to bombard the coastal town of Sunderland in an attempt to draw out and destroy Beatty's battlecruisers. As only two of the four German battlecruisers were still in fighting condition, three dreadnoughts were assigned to the Scouting Group for the operation: {{SMS|Markgraf||2}}, {{SMS|Grosser Kurfürst|1913|2}}, and the newly commissioned {{SMS|Bayern||2}}. The High Seas Fleet, including {{lang|de|Nassau}},{{sfn|Staff Vol. 1|p=24}} would trail behind and provide cover.{{sfn|Massie|p=682}} At 06:00 on 19 August, {{lang|de|Westfalen}} was torpedoed by the British submarine {{HMS|E23}} {{convert|55|nmi}} north of Terschelling; the ship remained afloat and was detached to return to port.{{sfn|Staff Vol. 1|p=26}} The British were aware of the German plans and sortied the Grand Fleet to meet them. By 14:35, Admiral Scheer had been warned of the Grand Fleet's approach and, unwilling to engage the whole of the Grand Fleet just 11 weeks after the close call at Jutland, turned his forces around and retreated to German ports.{{sfn|Massie|p=683}}

The fleet advanced as far as the Dogger Bank on 19–20 October.{{sfn|Staff Vol. 1|pp=26–27}} The operation led to a brief action on 19 October, during which a British submarine torpedoed the cruiser {{SMS|München||2}}. The failure of the operation (coupled with the action of 19 August) convinced the German naval command to abandon its aggressive fleet strategy. in favor of a resumption of the unrestricted submarine warfare campaign{{sfn|Massie|p=684}} On 21 December, {{lang|de|Nassau}} ran aground in the mouth of the Elbe. She was able to free herself, and repairs were effected in Hamburg at the Reihersteig Dockyard until 1 February 1917.{{sfn|Staff Vol. 1|p=24}} While the ship was still under repair in January, KzS Victor Reclam arrived to take command of the ship.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=133}}

In late 1917, light forces of the High Seas Fleet began interdicting British convoys to Norway, which prompted the British to detach battleships from the battle fleet to protect the convoys. The Germans were now presented with an opportunity for which they had been waiting the entire war: a portion of the Grand Fleet could be isolated and destroyed. Hipper planned the operation: the battlecruisers of I Scouting Group, along with light cruisers and destroyers, would attack one of the large convoys, while the rest of the High Seas Fleet would stand by, ready to attack the British battleship squadron. At 05:00 on 23 April 1918, Nassau and the rest of the fleet departed from the Schillig roadstead. Hipper ordered wireless transmissions be kept to a minimum, to prevent radio intercepts by British intelligence. At 06:10 the German battlecruisers had reached a position approximately {{convert|60|km|mi|sp=us}} southwest of Bergen when the battlecruiser Moltke lost her inner starboard propeller, which severely damaged the ship's engines. Despite this setback, Hipper continued northward. By 14:00, Hipper's force had crossed the convoy route several times but had found nothing. At 14:10, Hipper turned his ships southward. By 18:37, the German fleet had made it back to the defensive minefields surrounding their bases. It was later discovered that the convoy had left port a day later than expected by the German planning staff.{{sfn|Massie|pp=747–748}}

{{lang|de|Nassau}}, {{lang|de|Ostfriesland}}, and {{lang|de|Thüringen}} were formed into a special unit for Operation Schlußstein, a planned occupation of Saint Petersburg. On 8 August, {{lang|de|Nassau}} took on 250 soldiers in Wilhelmshaven and then departed for the Baltic. The three ships reached the Baltic on 10 August, but the operation was postponed and eventually canceled. The special unit was dissolved on 21 August, and the battleships were back in Wilhelmshaven on the 23rd.{{sfn|Staff Vol. 1|pp=24, 43–44, 46}}

{{lang|de|Nassau}} and her three sisters were to have taken part in a final fleet action at the end of October 1918, days before the Armistice was to take effect. The bulk of the High Seas Fleet was to have sortied from their base in Wilhelmshaven to engage the British Grand Fleet; Scheer—by now the Grand Admiral ({{lang|de|Großadmiral}}) of the fleet—intended to inflict as much damage as possible on the British navy, to improve Germany's bargaining position, despite the expected casualties. Many of the war-weary sailors felt that the operation would disrupt the peace process and prolong the war. On the morning of 29 October 1918, the order was given to sail from Wilhelmshaven the following day. Starting on the night of 29 October, sailors on {{lang|de|Thüringen}} and then on several other battleships mutinied. The unrest ultimately forced Hipper and Scheer to cancel the operation.{{sfn|Tarrant|pp=280–282}} The following month, KzS Hermann Bauer arrived to take command of the ship; he was to be {{lang|de|Nassau}}{{'}}s final captain.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=133}}

Following the German collapse that had resulted in the Armistice of 11 November 1918, a significant portion of the High Seas Fleet was interned in Scapa Flow. {{lang|de|Nassau}} and her three sisters were not among the ships listed for internment, so they remained at German ports.{{sfn|Hildebrand, Röhr, & Steinmetz Vol. 6|p=137}} They had their guns disabled, along with the four Helgoland-class battleships. Under the terms of the Treaty of Versailles that formally ended the war in June 1919, Nassau and the other dreadnoughts that had remained in Germany were to be surrendered to the Allies under Article 185. Negotiations between the Allies over which country received what vessels, and what those ships could be used for began in November. While final decisions were still being made, the Allies decided that the ships in question were to sail to either a British or French port, and accordingly, on 1 April 1920, Nassau and Ostfriesland sailed for Rosyth, Britain, arriving on 5 April.{{sfn|Dodson & Cant|pp=14, 32–35, 39–45}} On 7 April, {{lang|de|Nassau}} was awarded to Japan; the Japanese had no need for the ship, so they sold her in June to British shipbreakers, who partially stripped useful equipment before re-selling Nassau to shipbreakers in Dordrecht, who in turn scrapped the ship in 1922.{{sfn|Gröner|p=23}}{{sfn|Dodson & Cant|p=104}}

{{notes

| notes =

}}

{{reflist|20em}}

{{Commons category}}

• {{cite book

| last = Campbell

| first = John

| year = 1998

| title = Jutland: An Analysis of the Fighting

| publisher = Conway Maritime Press

| location = London

| isbn = 978-1-55821-759-1

| ref = {{sfnRef|Campbell 1998}}

}}

• {{cite journal

| last = Campbell

| editor-last=Preston

| editor-first=Antony

| first = N. J. M.

| year = 1977

| title = German Dreadnoughts and Their Protection

| journal = Warship

| volume = I

| issue = 4

| publisher = Conway Maritime Press

| location = London

| issn = 0142-6222

| ref ={{sfnRef|Campbell 1977}}

| pages = 12–20

}}

• {{cite book

| last1 = Campbell

| first1 = N. J. M.

| last2 = Sieche

| first2 = Erwin

| chapter = Germany

| pages = 134–189

| editor1-last = Gardiner

| editor1-first = Robert

| editor2-last = Gray

| editor2-first = Randal

| year = 1986

| title = Conway's All the World's Fighting Ships 1906–1921

| publisher = Conway Maritime Press

| location = London

| isbn = 978-0-85177-245-5

| name-list-style=amp

| ref ={{sfnRef|Campbell & Sieche}}

| url=https://archive.org/details/conwaysallworlds0000unse_z3o0

}}

• {{cite book

| last = Dodson

| first = Aidan

| author-link = Aidan Dodson

| year = 2016

| title = The Kaiser's Battlefleet: German Capital Ships 1871–1918

| publisher = Seaforth Publishing

| location = Barnsley

| isbn = 978-1-84832-229-5

| ref = {{sfnRef|Dodson}}

}}

• {{cite book

| last1 = Dodson

| first1 = Aidan

| last2 = Cant

| first2 = Serena

| title = Spoils of War: The Fate of Enemy Fleets after the Two World Wars

| year = 2020

| publisher = Seaforth Publishing

| location = Barnsley

| isbn = 978-1-5267-4198-1

| ref = {{sfnref|Dodson & Cant}}

}}

• {{cite book

| last = Grießmer

| first = Axel

| year = 1999

| language = de

| title = Die Linienschiffe der Kaiserlichen Marine: 1906–1918; Konstruktionen zwischen Rüstungskonkurrenz und Flottengesetz

| trans-title = The Battleships of the Imperial Navy: 1906–1918; Constructions between Arms Competition and Fleet Laws

| publisher = Bernard & Graefe Verlag

| location = Bonn

| isbn = 978-3-7637-5985-9

| ref ={{sfnRef|Grießmer}}

}}

• {{cite book

| last = Gröner

| first = Erich

| author-link=Erich Gröner

| year = 1990

| title = German Warships: 1815–1945

| volume = I: Major Surface Vessels

| publisher = Naval Institute Press

| location = Annapolis

| isbn = 978-0-87021-790-6

| ref = {{sfnRef|Gröner}}

}}

• {{cite book

| last = Halpern

| first = Paul G.

| year = 1995

| title = A Naval History of World War I

| publisher = Naval Institute Press

| location = Annapolis

| isbn = 978-1-55750-352-7

| ref = {{sfnRef|Halpern}}

}}

• {{cite book

| last = Herwig

| first = Holger

| year = 1998

| orig-year = 1980

| title="Luxury" Fleet: The Imperial German Navy 1888–1918

| publisher = Humanity Books

| location = Amherst

| isbn = 978-1-57392-286-9

| ref = {{sfnRef|Herwig}}

}}

• {{cite book

| last = Heyman

| first = Neil M.

| year = 1997

| title = World War I

| publisher = Greenwood Publishing Group

| location = Westport

| isbn = 978-0-313-29880-6

| ref = {{sfnRef|Heyman}}

| url-access = registration

| url = https://archive.org/details/worldwari00heym

}}

• {{cite book

|last1=Hildebrand

|first1=Hans H.

|last2=Röhr

|first2=Albert

|last3=Steinmetz

|first3=Hans-Otto

| title = Die Deutschen Kriegsschiffe: Biographien – ein Spiegel der Marinegeschichte von 1815 bis zur Gegenwart

| trans-title=The German Warships: Biographies − A Reflection of Naval History from 1815 to the Present

| volume = 2

|year=1993

|location=Ratingen

|publisher=Mundus Verlag

| isbn = 978-3-7822-0287-9

|language=de

|name-list-style=amp

|ref={{sfnRef|Hildebrand, Röhr, & Steinmetz Vol. 2}}

}}

• {{cite book

| last1 = Hildebrand

| first1 = Hans H.

| last2 = Röhr

| first2 = Albert

| last3 = Steinmetz

| first3 = Hans-Otto

| year = 1993

| title = Die Deutschen Kriegsschiffe: Biographien – ein Spiegel der Marinegeschichte von 1815 bis zur Gegenwart

| trans-title=The German Warships: Biographies − A Reflection of Naval History from 1815 to the Present

| volume = 6

| publisher = Mundus Verlag

| location = Ratingen

| isbn = 978-3-7822-0237-4

| language = de

| ref = {{sfnRef|Hildebrand, Röhr, & Steinmetz Vol. 6}}

|name-list-style=amp

}}

• {{cite book

| last = Hough

| first = Richard

| author-link = Richard Hough

| year = 2003

| title = Dreadnought: A History of the Modern Battleship

| publisher = Periscope Publishing

| location = Penzance

| isbn = 978-1-904381-11-2

| ref = {{sfnRef|Hough}}

}}

• {{cite book

| last = Massie

| first = Robert K.

| author-link = Robert K. Massie

| year = 2003

| title = Castles of Steel: Britain, Germany, and the Winning of the Great War at Sea

| publisher = Ballantine Books

| location = New York City

| isbn = 978-0-345-40878-5

| ref = {{sfnRef|Massie}}

}}

• {{cite book

| last = Staff

| first = Gary

| year = 2010

| title = German Battleships: 1914–1918

| volume = 1: Deutschland, Nassau and Helgoland Classes

| publisher = Osprey Books

| location = Oxford

| isbn = 978-1-84603-467-1

| ref ={{sfnRef|Staff Vol. 1}}

}}

• {{cite book

| last = Staff

| first = Gary

| year = 2010

| title = German Battleships: 1914–1918

| volume = 2: Kaiser, König And Bayern Classes

| publisher = Osprey Books

| location = Oxford

| isbn = 978-1-84603-468-8

| ref ={{sfnRef|Staff Vol. 2}}

}}

• {{cite book

| last = Tarrant

| first = V. E.

| year = 2001

| orig-year = 1995

| title = Jutland: The German Perspective

| publisher = Cassell Military Paperbacks

| location = London

| isbn = 978-0-304-35848-9

| ref = {{sfnRef|Tarrant}}

}}

{{Nassau class battleship}}

{{featured article}}

{{DEFAULTSORT:Nassau}}

Category:Nassau-class battleships

Category:World War I battleships of Germany

Category:Ships built in Wilhelmshaven

Category:1908 ships