Defcon Four Alert Level. Double Take Or Condition Color Green
What Is Defcon Level Four Or "Double Take"?Defcon level four, also called "Double Take" is green in color and an increase in intel gathering and strengthening of security protocols. Four readiness is considered "Above Normal Readiness".
This is just one level lower than "Normal readiness" with the military on green alert status. Four was the current alert status of the United States military until it was changed to three recently.