M4 Sherman Tank - Crew tell how shocking it was

Doctrine As the US approached entry in World War II, armored employment was doctrinally governed by FM 100-5 Operations (published May 1941, the month following selection of the M4 tank’s final design). That FM stated that: The armored division is organized primarily to perform missions that require great mobility and firepower. It is given decisive missions. It is capable of engaging in all forms of combat, but its primary role is in offensive operations against hostile rear areas.[10] In othe