Like in the Marianas and Solomon’s…if they don’t come out and surrender in defeat…let ‘em stay there. We had to bury tunnels and caves with bulldozers, after using grenades and flamethrower, to kill the last holdouts and secure the islands for our press towards the mainland and ultimately end the war.
“We had to bury tunnels (and fighting positions)... with bulldozers”
We did that in the Gulf War as well.