The term “unconditional surrender” as applied to Japan was “these are the terms, there will be no negotiation.” But there were several things left unspecified, such as the status of the Emperor. The Japanese tried to get better terms by using the Soviet Union as an intermediary, but that didn’t work
‘Murica
Hmm, never noticed before that rather than giving the "Roman salute" on the final chorus, they are instead flipping the bird.