A former nurse at Kwajalein Hospital was sentenced Monday afternoon to two years in federal prison for sexually abusing a drunken male Coast Guard sailor on shore leave on the Marshall Island atoll last year.

The two-year term is the sentence to which Dennis Henry, 38, agreed when he pleaded guilty in December in a deal with the government. In exchange the prosecutor dropped a second charge accusing Henry of sexually assaulting the sailor in March 2012 after spiking his beer with Ambien.

U.S. District Judge Leslie E. Koba­ya­shi accepted the plea agreement Monday and imposed the prison term. She also ordered Henry to undergo five years of court supervision after he gets out of prison. Henry has been in custody since his arrest in August.