ANCHORAGE, Alaska (AP) -- An Alaska-based soldier convicted of attempted espionage faces life in prison when he goes before a U.S. Army sentencing panel Monday. The military on Thursday announced Spc. William Colton Millay pleaded guilty March 19.

Officials at Joint Base Richardson-Elmendorf in Anchorage say Millay pleaded to attempted espionage, soliciting another to commit espionage, issuing a false statement and communicating national defense information.

Millay was being held at Joint Base-Lewis McChord in Washington state. JBER spokesman John Pennell says the 24-year-old soldier was in Alaska for a routine motion when he decided to plead guilty.

Millay faces penalties from prison time to dishonorable discharge.

The military police officer was arrested in October 2011.

Millay, of Owensboro, Ky., is accused of transmitting national defense information to an undercover FBI agent he believed was a foreign intelligence agent.