His sentence was a reduction in rank and forfeiture of $500 in pay.
Joseph Chamblin pled guilty at a special court martial at Camp Lejeune, North Carolina, to dereliction of duty for failing to properly supervise junior Marines. He also pled guilty to wrongfully urinating on a deceased enemy combatant.
The incident occurred during a counter-insurgency operation in Afghanistan in July 2011. It came to light in January this year when a video of the incident was posted online.
Chamblin waived his right to a jury and pled guilty to two counts before a military judge, the statement said.