As General Marshall demonstrated throughout his storied career, strong and effective leaders understand the importance of teamwork, listening to their partners and sharing credit for success.

For the United States and Great Britain, Germany was always the main thing. In January 1942, they agreed to prioritize the war against German forces in Europe over all other efforts, including the war on Japan. But for the next two years, American and British strategists would engage in lengthy and divisive debates over how exactly to execute that policy.