Daniel J. Turner, 26, of 9700A King Loop, Fort Drum, was charged by state police Thursday morning with third-degree rape and endangering the welfare of a child.
State police said he had intercourse with a girl younger than 17 years old during an incident in November on Fort Drum.
He was released on his own recognizance.
Fort Drum public affairs said Friday afternoon that Sgt. Turner was a cannon crew member with the 2nd Battalion, 15th Field Artillery Regiment of the 2nd Brigade Combat Team.