4The United States, being at peace, had not foreseen the need for a specialized tank recovery vehicle, despite the ramping-up of tank production in 1940-41. However, observation of the new world war quickly pointed to the need for such a vehicle. Armored vehicles, immobilized for any reason, were easily destroyed by opposing troops, denying the possibility for recovery and repair or even the salvaging of parts after the battle. This book chronicles the development and use of the US and British military's Sherman tank-based armored recovery vehicles.