War is ugly. That's probably happening on both sides. You try not killing a guy that's was shooting to kill you.

Prisoner of war.

What do American soldiers have to do with this? That is not even a good whataboutism.

Side note: The American army unofficially encourages their combat arms branch soldiers to shoot wounded combatants during combat and to double-tap the wounded and the dead while assaulting through killzones so they don't have to worry about 'bullshit rules' relating to capturing POWs including 'bullshit' things such as delivering life-saving first aid or the "hassle" of transporting them to a location to properly process them as POWs under the international rules of war.