Iraq - A soldier filmed a ghost inside his room

A soldier filmed a poltergeist inside his room in Iraq. On video, we can see the doors of his wardrobe open all by itself. What happened?

He claims:

But anyways, the video wasn't made for youtubes scariest ghost, it was being made for my family back home, I was sending home a blog of myself being in Iraq and telling them I loved and missed them, and when I started talking about how much I missed my girlfriend there was a voice behind me that was hard to make out, but when I turned to see where the voice had come from, my damn locker doors opened with heavy force. It scared the shit out of me, and I have put in a request for a room swap, maybe when my Sergeants see this they will understand.

Source, 08th November 2018