See this post:
Numbers came from Newsweek piece 2 years ago.
Businessweek, 28OCT02, p12: "Casualties of War and Piece" (a small table, not an article). Most recent data read thus:
1999-2001: 1.37 million avg active duty troops
Cause and number of deaths in that period:
Terrorist attack: 70
Hostile Action: 0
Self inflicted: 405