The Japanese Ho-Ro artillery 1942

The Type 4 15cm self-propelled gun Ho-Ro was a self-propelled gun developed by the Imperial Japanese Army in World War II.

Inspired by the Grille series of self propelled artillery vehicles developed by Nazi Germany during World War II, wherein a 15 cm sIG 33 infantry support gun was mounted on a tracked chassis, engineers at the Army Technical Bureau resolved to do the same. Production was assigned to Mitsubishi Heavy Industries. The exact number produced is uncertain, but was approximately 25 units.