Type 5 Chi-Ri medium tank Type 5 Chi-Ri medium tank The ("Imperial Year 2605 Medium Tank Model 9") was the ultimate medium tank developed by the Imperial Japanese Army in World War II. Intended to be a heavier, more powerful version of Japan's prototype Type 4 Chi-To medium tank, in performance it was designed to surpass the US M4 Sherman medium tanks being fielded by the Allied forces. A single prototype was incomplete when the war ended. Based on battlefield information from the Eastern Front, Department of Arm Weaponry published a report demanding a shift of tank design focus from Infantry tank to tanks specialised
Allied technological cooperation during World War II (radio-frequency) proximity fuse. It was five times as effective as contact or timed fuzes and was devastating in naval use against Japanese aircraft and so effective against German ground troops that General George S. Patton said it "won the Battle of the Bulge for us." The Medium Tank M4 was used in all theatres of the Second World War. It had a versatile reliable design and was easy to produce, thus huge numbers were made and provided to both Britain and the USSR by the United States under Lend-Lease. Despite official opinions, the Medium Tank M4 was well liked by