This might help you LC. But I am KFA.
Levels.
The preparations that take place under the five DEFCONs are difficult to describe because they vary between many commands, they have changed over time as new weapon systems were deployed, and the precise details remain classified.[2] Additionally, during nuclear / normal tests, exercises, or drills, the United States Department of Defense uses exercise terms when referring to the DEFCONs.[4] This is to preclude the possibility of confusing exercise commands with actual operational commands. The current exercise terms have been used since at least 1960, when they were used in a North American Aerospace Defense Command (NORAD) exercise.[2]
The five DEFCONs, their exercise terms, and their general descriptions are shown below.[2][3][4]
Defense condition
Exercise term
Description
Readiness
Color
DEFCON 5
FADE OUT[3]
Lowest state of readiness
Normal readiness
Blue
DEFCON 4
DOUBLE TAKE[3]
Increased intelligence watch and strengthened security measures
Above normal readiness
Green
DEFCON 3
ROUND HOUSE[3]
Increase in force readiness above that required for normal readiness
Medium readiness
Yellow
DEFCON 2
FAST PACE[3]
Next step to nuclear war
War readiness
Red
DEFCON 1
COCKED PISTOL[3]
Nuclear war is imminent
Maximum readiness
White
Movies and popular culture often misuse the DEFCON system by "going to DEFCON 5" during a state of emergency.[5] In fact, DEFCON 5 is the lowest state of readiness. DEFCON 1 has never been called for.