I am wondering about this because of the Sino-German cooperation that lasted until 1941. Had Germany kept supporting China in the 2nd Sino-Japanese War, they may have started exporting the Panzer III/Panzer IVs. The PzIII had a 37mm gun like the Pak 36, while the Panzer IV had a short-barreled 75mm gun, for infantry support. These tanks were not good against Allied tanks, but neither were Japanese ones. Do you think a Panzer III with its 37mm gun or a Panzer IV with its infantry 75mm gun could defeat a Type 97 Chi-Ha?