Well, we had no troops in Japan proper until after the surrendered, so any troops at all was an increase. In Germany we were sending folks home ASAP, leaving those with "not enough points" to form the occupation forces. My father was one of those. Other than confiscating a few caches of small arms, including knives, hunting with their Garands, and fishing with hand grenades, he never talks about any combat operations after the surrender. There were some, but not many, and were virtually none in Japan. When their God-Emperor said "surrender", they surrendered.
The Iraqi situation, starting with "foreign fighters" has been totally different.