Even after the bombings and the official surrender, even after our occupation forces began to arrive in Tokyo and elsewhere, the Japanese laborers were still hard at work building defensive bunkers. I've seen the photos, taken by my father-in-law when he arrived in Sasebo with a handful of Americans sent there to secure an armory. Either the Japanese were *very* slow to get the news, or they refused to accept it. Either way, they were digging in for one heck of a fight.
Amazing.