There is an old saying that the biggest difference between a PFC and a 2ndLT is that the PFC has been promoted, twice.
IF you take an M16 blank, and insert it in the muzzle, give it a good rap with a rock (never use your helmet, Sgts can hear that sound a mile off), so it jams in there, and then fire a blank, the case is capable of punching through the door of a deuce and a half at close range. (don't ask)
there was a story in the 70s of how a guy used a blank and shot a section of cleaning rod into a landing helicopter engine. 3 or 4 dead.
I personally did the ECOD for an M16 that was blown up using blanks.
I saw a guy get hit with the blank adaptor when it blew off an M60. (hey, in was in our wire!!)
And all these were in training. NOT combat ops.
Few things are a destructively inventive as a bored GI, E or O grade, young, away from home, and lacking adult supervision, even for a few minutes.
attacks against military personnel are on the increase largely because they are seen as legit targets and symbols for the "enemy regime".
They always have been. Soldiers, and political office holders ARE legitimate targets of war. Attack only them, and you are a revolutionary, attack people who aren't members of the "enemy" government or govt forces, and you are a
terrorist.
The Sherriff of Nottingham and his guards are legitimate targets, the village peasants are not.