Soldiers in the U.S. Army who deploy within six months of an earlier deployment are at higher risk for suicide, as are new recruits who are sent to war within one year of enlisting. Those who redeploy within six months are 1.6 times more likely to attempt suicide. Soldiers who serve 12 months or less before their first deployment are twice as likely to attempt suicide during or after their deployment, compared with soldiers who had a longer time to train and acclimate to military life before deployment. Suicide attempts could be reduced by as much as 14% if all soldiers served in the Army for more than one year before first deployment. Allowing six months between deployments could reduce suicide attempts by 4%, write the researchers in the online April 18 JAMA Psychiatry.