Did the US ever invade Japanese home islands (Kyushu, Shikoku, Honshu, Hokkaido) during the war? I am pretty sure they got some of Okinawa then dropped two nukes, then Japan surrendered. Do I have the order of events incorrect?
Yes, you're most probably not taking into consideration the Soviets' incursion into Northern Manchuria, which started on August 9th. The last thing the Japanese leadership wanted was to see a big part of their country turn communist.