One in five U.S. military deaths last year was as a result of suicide, and the number of troops taking their own lives has increased in each of the last three years, according to a Washington Examiner analysis of Department of Defense data.

The rate appears to be on pace to decrease somewhat for 2013, but last year many more soldiers died at their own hands than were killed by the enemy, with 350 killing themselves and 167 killed in action. It was the second straight year suicides exceeded combat deaths.

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