What is HURCON?

Introduction Hurricane Condition (HURCON) is an alert scale used by the United States Armed Forces in the North Atlantic and the North Pacific to indicate the state of emergency or preparedness for an approaching hurricane. This designation is especially important to installations in the southern Atlantic region, as it is most affected by hurricanes. In… Read More


What is INFOCON?

Introduction Information operations condition (INFOCON) is a threat level system in the United States similar to that of FPCON. It is a defence system based primarily on the status of information systems and is a method used by the military to defend against a computer network attack. Other Systems Should not be confused with similar… Read More

What is FPCON?

Introduction In United States military security parlance, force protection condition (FPCON) is a counter-terrorist threat system overseen by the United States Department of Defence directive. It describes the number of measures needed to be taken by security agencies in response to various levels of terrorist threats against military facilities, as opposed to DEFCON, which assesses… Read More


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