The U.S. Military does have a sentence of life without parole.
There have been no executions since April 13,
1961, when U.S. Army Private John A. Bennett was hanged. There are 9
men on the military death row.
In 1983, the Armed Forces Court of Appeals held in
U.S. v. Matthews, that military capital sentencing procedures were
unconstitutional for failing to require a finding of individualized
aggravating circumstances. In 1984, the death penalty was reinstated
when President Ronald Reagan signed an executive order adopting
detailed rules for capital courts-martial. Among the rules was a list
of 11 aggravating factors that qualify defendants for death sentences.