Alert state
Encyclopedia
An alert state is an indication of the state of readiness of the armed forces for military action or a State
Sovereign state
A sovereign state, or simply, state, is a state with a defined territory on which it exercises internal and external sovereignty, a permanent population, a government, and the capacity to enter into relations with other sovereign states. It is also normally understood to be a state which is neither...

 against terrorism
Terrorism
Terrorism is the systematic use of terror, especially as a means of coercion. In the international community, however, terrorism has no universally agreed, legally binding, criminal law definition...

 or military attack.

Examples are the DEFCON
DEFCON
A defense readiness condition is an alert posture used by the United States Armed Forces. The DEFCON system was developed by the Joint Chiefs of Staff and unified and specified combatant commands. It prescribes five graduated levels of readiness for the U.S...

 levels of the US armed forces, and the British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 government's UK Threat Levels
UK Threat Levels
The UK Threat Levels refer to the alert state that has been in use since 1 August 2006 by the British government to warn of forms of terrorist activity. Before then a colour based alert scheme known as BIKINI state was used...

.

See also

  • Combat readiness
    Combat readiness
    Combat readiness is a condition of the armed forces and their constituent units and formations, warships, aircraft, weapon systems or other military technology and equipment to perform during combat military operations, or functions consistently with the purpose for which they are organised or...

  • REDCON
    REDCON
    In the U.S. military, the term REDCON is short for Readiness Condition and is used to refer to a unit's readiness to respond to and engage in combat operations. There are five REDCON levels, as described below in this excerpt from Army Field Manual 71-1....

  • INFOCON
  • FPCON
  • LERTCON
    LERTCON
    In United States military doctrine, LERTCON is an abbreviation of Alert Condition, and is a measure of the level of action and readiness to be taken in a given situation. There are specific procedures laid out for responses to changes in LERTCON...

  • EMERGCON
    EMERGCON
    EMERGCON is a state of readiness that is separate from DEFCON, or defense readiness condition used by the United States, in that it incorporates civilian measures in addition to the DEFCON military measures....

  • Homeland Security Advisory System
    Homeland Security Advisory System
    In the United States, the Homeland Security Advisory System was a color-coded terrorism threat advisory scale. The different levels trigger specific actions by federal agencies and state and local governments, and they affect the level of security at some airports and other public facilities. It...

  • DEFCON
    DEFCON
    A defense readiness condition is an alert posture used by the United States Armed Forces. The DEFCON system was developed by the Joint Chiefs of Staff and unified and specified combatant commands. It prescribes five graduated levels of readiness for the U.S...

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