Comparing: AC 1 Sentinel vs. Type 1 Chi-He

Developed in 1941 under the program for Australian cruiser tanks. There were plans to produce 2,000 vehicles, but from 1942 through 1943, only 65 vehicles, with serial numbers from 8001 to 8065, were manufactured. In July 1943, it was decided to stop development and cancel the program. The vehicles never saw combat and were used only for training purposes. In 1946, the tanks were removed from service.

The Type 1 Chi-He medium tank was a further development of the Type 97 Chi-Ha. It was developed in 1941, but due to the lack of steel, production did not start until 1943. A total of 170 tanks were manufactured. Most of them were held for the defense of Japan and never saw combat.