Why Koreans didn’t fight against Japanese during WW2?

They say 200,000 Korean women were abducted and d by Japanese soldiers during WW2 as comfort women. Why Korean men didn’t fight back to protect their daughters and sisters? I believe Koreans are very brave people. They fought with military junta for democracy in 80s. They fought bravely against Japanese in 1919. Why they didn’t during WW2 even when their women were abducted? Are there any Korean men who fought with Japanese and were killed to protect Korean women?