Everybody is guilty of raping and impaling ...
But in this scenario, depending on version of WH40K lore, beakies may or not have rapey equipment. Hence impaling only is possible.
Ongoing effort by Orkz and Spikiez since 30K ...
BTW - which militaries are capable of burying the Astartes under dead bodies? Which politicians are capable of giving such an order and being obeyed?
NORKS and some moslem crazies? Anybody else?