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Homeland Security Advisory System color chart. In the United States, the Homeland Security Advisory System (HSAS) was a color-coded terrorism threat advisory scale created in March 2002 under the Bush administration in response to the September 11 attacks.
The five-level color system has been criticized as being vague and ineffective, and alert levels have rarely changed from the yellow ("elevated") and orange ("high") levels. [ 3 ] [ 4 ] The color-coded Homeland Security Advisory System is the predecessor to the NTAS.
DEFCON levels. The defense readiness condition (DEFCON) is an alert state used by the United States Armed Forces. [1] [2] For security reasons, the US military does not announce a DEFCON level to the public. [1] The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. [3]
McConnell AFB entrance displaying THREATCON DELTA on the day of the 9/11 attacks. In United States military security parlance, the force protection condition (FPCON for short) is a counter-terrorist (otherwise known as antiterrorism (AT for short)) [1]:1 threat system employed by the United States Department of Defense.
Additionally, several of the threat levels have been increased in difficulty with the introduction of new test threats; most notably is the introduction of Class BR6, which requires the tested armor to survive three hits of 12.7×108mm B32 API. In spite of the more difficult test threats, the 16 mm (0.63 in) back-face deformation limit remains ...
The threat level was reduced in 2022 after the Islamic State group's territorial losses in the Middle East led to fewer investigations of extremists plotting attacks in Australia, he said.
National Counter-Terrorism Alert Level. ... Since November 2015, the international terrorism threat level is considered to be at moderate, meaning an attack is ...
In July 2019 changes were made to the terrorism threat level system creating a 'New Format' of threat levels, to reflect the threat posed by all forms of terrorism, irrespective of ideology. There is now a single national threat level describing the threat to the UK, which includes Islamist, Northern Ireland, left-wing and right-wing terrorism. [1]