General Curtis LeMay said something similar about the firebombing of Japanese cities near the end of WWII (before Hiroshima and Nagasaki). IIRC, he expressed gratitude that us Americans won the war, so he wouldn't be held personally responsible for the individual atrocities of Japanese civilians burned alive.
Or as Sherman put it, war is hell. Pretty glib, this far from the Confederate State of Georgia.
Bill Mauldin's grunts made it through the Pearly Gates. They were just following orders. I'm not sure about Generals. Or Presidents. In the old cherry blossom days, or so I've heard, there was a Buddhist remark to the effect that a samurai's karma is so horrifically bad that he could not even be reborn as a dog — only as a samurai.