DEFCON 3 Condition Level - Round House Or Yellow Alert
DEFCON 3, or condition level three has also been called "Round House" or "Yellow Alert" and is an increase in alertness and military readiness. With DEFCON 3 the air force is in a higher state or level of readiness so that they can deploy and mobilize within 15 minutes time.
The alert color for DEFCON 3 is yellow, or 'yellow alert' level. The meaning behind Defcon 3 is similar to that of a yellow "caution" sign. We are prepared, cautious and in a state of military readiness. Round house is a state of preparedness and a high level of caution.
The alert status may be raised to Defcon 3 after a precision strike is carried out by an an enemy, or after a precision strike is carried out by the United States military or any event that warrants a cautious state of military readiness alert level by U.S forces.