The Squadron Detail In Action series was started in 1971. This series covers the development, testing, and production of aircraft, armored vehicles, and ships. The focus of this book is on the M3 Gun Motor Carriage.
At the beginning of World War Two, the United States realized the need for an effective antitank weapon. Through this need, the Military used the M3 halftrack as the base and married it to the M1897A4 75mm gun to create the M3 Gun Motor Carriage. In October, 1941, the first production contract began. By October, 1944, the Gun Motor Carriage was considered obsolete by the U.S. Army. During its career many of these units were used by Great Britain and U.S. Marines well into 1945.
