The M4 Sherman tank was a central player in the complex historical drama of World War II. It played pivotal roles in every major theater of the war and was a major product of the Allied "Arsenal of Democracy." The simplicity of the M4 Sherman's design enabled the Allies to manufacture enough units to overwhelm the qualitatively superior German tanks. The design compromises necessary to achieve this end required a special ingenuity and courage on the part of the tanks' crews. M4 Sherman at Waris an account of the design, evolution, and employment of an underpowered, under-armored, under-gunned tank, whose contribution to mid-twentieth century armored warfare ensures its place as the single most important tank of all time.Brown, James D. is the author of 'M4 Sherman at War ', published 2007 under ISBN 9780760327845 and ISBN 076032784X.