721st Operations Support Squadron

{{short description|U.S. Space Force unit}}

{{Use dmy dates|date=September 2021}}

{{Use American English|date=August 2021}}

{{Infobox military unit

| unit_name = 3rd Combat Training Squadron

| image = 3rd Combat Training Squadron emblem.png

| image_size =

| caption = Squadron emblem

| dates = 3 March 2022 – present

| country = {{flagu|United States}}

| branch = {{no wrap|{{space force|United States}}}}

| type = Squadron

| role = Combat Training

| size = Squadron

| command_structure= Space Delta 3

| garrison= Peterson Space Force Base, Colorado, U.S.

| garrison_label= Headquarters

| nickname = Warriors

| motto = "Warriors First!"

| website =

| commander1 = Lt Col Christopher M. Higgins

| commander1_label = Commander

| commander2 =

| commander2_label = Deputy Commander

| commander3=

| commander3_label = Superintendent

| notable_commanders=

| identification_symbol = File:721st Operations Support Squadron.jpg

| identification_symbol_label = Former 721st Operations Support Squadron patch

}}

The 3rd Combat Training Squadron (3 CTS) is a United States Space Force training unit. Assigned to Space Operations Command's Space Delta 3, it provides electromagnetic warfare qualification training to Delta 3 operators.{{cite web|url=https://www.peterson.af.mil/Portals/15/Delta3_factsheet.pdf|title=Space Delta 3 Fact Sheet|date=24 July 2020|agency=Peterson Air Force Base|access-date=24 July 2020|archive-date=24 July 2020|archive-url=https://web.archive.org/web/20200724203840/https://www.peterson.af.mil/Portals/15/Delta3_factsheet.pdf|url-status=dead}} {{PD-notice}} Headquartered at Peterson Space Force Base, Colorado, it was activated on 3 March 2022. The squadron was previously designated as the 721 Operations Support Squadron following the establishment of the 721st Operations Group in 2019 which was later redesignated to Space Delta 3.{{Cite web|url=https://www.peterson.spaceforce.mil/News/Article/1991753/721st-og-activated-as-usaf-realigns-to-protect-and-defend-us-space-capabilities/|title=721st OG activated as USAF realigns to 'Protect and Defend' U.S. Space Capabilities|website=Peterson Air Force Base|access-date=20 June 2021|archive-date=24 June 2021|archive-url=https://web.archive.org/web/20210624202736/https://www.peterson.spaceforce.mil/News/Article/1991753/721st-og-activated-as-usaf-realigns-to-protect-and-defend-us-space-capabilities/|url-status=live}}