Introduction An emergency condition (EMERGCON) is a state of readiness that is separate from DEFCON, or defence readiness condition used by the United States, in that it incorporates civilian measures in addition to the DEFCON military measures. Background Generally, EMERGCONs are a state of readiness following an ICBM (intercontinental ballistic missile) attack. Other forces go… Read More


What is LERTCON?

Introduction In United States military doctrine, an alert condition (LERTCON) is a measure of the level of action and readiness to be taken in a given situation. Background LERTCON is used by US and Allied forces who are assigned to NATO. There are specific procedures laid out for responses to changes in LERTCON. LERTCON levels… Read More

What is DEFCON?

Introduction The defence readiness condition (DEFCON) is an alert state used by the United States Armed Forces. The DEFCON system was developed by the Joint Chiefs of Staff (JCS) and unified and specified combatant commands. It prescribes five graduated levels of readiness (or states of alert) for the US military. It increases in severity from… Read More