| 释义 |
: any one of five levels of U.S. military defense readiness that are ranked from 5 to 1 according to the perceived threat to national security, with 1 indicating the highest level of perceived threat It was determined that the secretary of Defense had the authority to declare DEFCON 3 on his authority. Stephen A. Cambone —sometimes used figuratively Don't even mention the privatization of Social Security that will take Congress to DEFCON 1. Sam Allis |