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  2. Force protection condition - Wikipedia

    en.wikipedia.org/wiki/Force_Protection_Condition

    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.

  3. Information operations condition - Wikipedia

    en.wikipedia.org/wiki/Information_Operations...

    INFOCON (short for information operations condition) is a threat level system in the United States similar to that of FPCON. It is a defense system based primarily on the status of information systems and is a method used by the military to defend against a computer network attack.

  4. DEFCON - Wikipedia

    en.wikipedia.org/wiki/DEFCON

    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]

  5. United States security clearance - Wikipedia

    en.wikipedia.org/wiki/United_States_security...

    The US Department of Defense establishes, separately from intelligence compartments, special access programs when the vulnerability of specific information is considered exceptional and the normal criteria for determining eligibility for access applicable to information classified at the same level are not deemed sufficient to protect the ...

  6. Alert state - Wikipedia

    en.wikipedia.org/wiki/Alert_state

    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". [ 1 ]

  7. LERTCON - Wikipedia

    en.wikipedia.org/wiki/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.. LERTCON is used by US and Allied forces who are assigned to NATO

  8. List of components of the U.S. Department of Defense

    en.wikipedia.org/wiki/List_of_components_of_the...

    The chain of command leads from the president (as commander-in-chief) through the secretary of defense down to the newest recruits. [2] [3] The United States Armed Forces are organized through the United States Department of Defense, which oversees a complex structure of joint command and control functions with many units reporting to various commanding officers.

  9. Organizational structure of the United States Department of ...

    en.wikipedia.org/wiki/Organizational_structure...

    The President of the United States is, according to the Constitution, the Commander-in-Chief of the U.S. Armed Forces and Chief Executive of the Federal Government. The Secretary of Defense is the "Principal Assistant to the President in all matters relating to the Department of Defense", and is vested with statutory authority (10 U.S.C. § 113) to lead the Department and all of its component ...