SEOUL, South Korea — The U.S. Army is investigating a soldier as a possible defector, after a video surfaced showing him among the ranks of the North Korean army, sources confirmed today.

Although he does not identify himself in the video, intelligence sources believe the man seen in the four-minute clip is Private First Class Robert Tredmons, a soldier currently listed as missing in action but alleged to have walked off his Seoul base in 2010, heading towards the de-militarized zone.

The video release from North Korean news sources appears to substantiate claims the soldier is a defector and not a prisoner of war. In the video, he is shown as serving as a Supreme Private First Class in the North Korean Army and claims to enjoy the North Korean military much more than the U.S. Army, where he says he was was constantly yelled at and berated.