Or captured.
Our Club Potshots are still run by a veteran of the Iwo and Okinawa invasions.
He also was part of the peace keeping force in Japan and was at Nagasaki. He said walking across the nuclear blast area was like walking on broken glass.
Anyway when his ship arrived in San Pedro Harbor all American soldiers were required to open their duffle bags. There was a large pile of confiscated grenades, land mines, and mortar shells,
off to the side. If you had a Japanese rifle with an intact crest you were told to get in a line and the crest was ground off on American soil by an American.
They were told it was because of an agreement with the Emperor.