Knew a few guys who got their citizenship while in the Army. Not sure why a PD would be a problem for a non-citizen.

My favorite immigrant was the Albanian mortarman. His PSG was lazy about CIB citations, and cited him based on an incident he was not at in order to not have to do as many write-ups, despite having been at another incident which qualified him, so he refused to accept the award until it was fixed.

2nd favorite was the Polish dude in our Scout platoon. He earned the nickname "Polish Assassin" because in the invasion he took out a Bongo truck at 2km with the Mk19, with one shot. He married a Colombian. I couldn't understand either one of them and have no idea how they understood each other.