Alert state

{{Short description|Military forces on forms of threat}}

{{For|the American hardcore punk group|State of Alert}}

{{Redirect|Threat analysis|the process of identifying potential threats to computer systems|Threat model}}

An alert state or state of alert is an indication of the state of readiness of the armed forces for military action or a state against natural disasters, terrorism or military attack. The term frequently used is "on high alert".[https://abcnews.go.com/International/story?id=82296&page=1 U.S. Military on 'High Alert'] [Retrieved 2013 April 12] Examples scales indicating alert state are the DEFCON levels of the US military,R. van Dijk [https://books.google.com/books?id=rUdmyzkw9q4C&dq=DEFCON++alert+status+levels&pg=PA237 Encyclopedia of the Cold War, Volume 1] South Korea's "Jindogae" system,{{cite news|work=Dong-A Ilbo|title=NK fires shells onto S. Korean island, kills 2 Marines |url=http://english.donga.com/srv/service.php3?bicode=050000&biid=2010112430388|date=24 November 2010|access-date=30 November 2010}} and the UK Threat Levels.Home Office [https://www.gov.uk/terrorism-national-emergency Terrorism and national emergencies] [Retrieved 2013 April 12] {{webarchive|url=https://web.archive.org/web/20130729040409/https://www.gov.uk/terrorism-national-emergency |date=29 July 2013}} High alert states are synonymous with "red alert".{{wikt-inline|red alert}}