Good!! When my Mom’s uncle was 18 we was being shot at by nazis. Fortunately thanks to his govt issued rifle and training he received courtesy of the US Army he took out a couple of them and was eventually HONORABLY DISCHARGED.
My FIL went to military school as a teenager, and at 17 was sent to fight in Italy. He rarely talked about the atrocities he witnessed, even when asked directly. In fact, he would be downright uncomfortable and give as few details as possible. My sons asked him once when they were in middle school and studying WWII. He was unwilling to say very much at all, and left the room very upset. He earned several medals that my husband now has framed. Rest In Peace, Pops. Miss you.