出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/07/08 01:47 UTC 版)
A defense readiness condition (DEFCON) is an alert posture used by the United States Armed Forces. The DEFCON system was developed by the Joint Chiefs of Staff and unified and specified combatant commands. It prescribes five graduated levels of readiness (or states of alert) for the U.S. military, and increase in severity from DEFCON 5 (least severe) to DEFCON 1 (most severe) to match varying military situations.
出典:『Wikipedia』 (2011/06/30 13:18 UTC 版)
DEF CON (also written as DEFCON or Defcon) is one of the world's largest annual hacker conventions, held every year in Las Vegas, Nevada. The first DEF CON took place in June 1993.
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the batting order