DEFCON 4 Condition Level - Double Take Or Green Alert
DEFCON 4, or condition level four has also been called "Double Take" or "Green Alert" and is an increase in intel gathering and strengthening of security protocols. DEFCON 4, or Double Take is considered "Above Normal Readiness".
The status alert color for DEFCON 4 is green, also known as Green alert. Defcon 4 is just one level lower than normal readiness and the military is on a lower state of readiness status during Double Take than the previous alert statuses. The only status safer than Double Take is alert condition level 5.
The United States alert status might be set to Defcon 4, or 'Green Alert' after a precision strike on an enemy target, or after a precision strike has been carried out by an enemy.
Double Take, or condition level 4 may also be reached during a time of uncertainty while intelligence is gathered to indicate the severity of a situation, or any situation where above normal readiness is required.