Lend-Lease was the system by which the U.S. gave its allies $50 billion in military aid in 1941-45 to help win World War II.[1]. There was no repayment required. $31 billion went to Britain, $11 billion to the Soviet Union, $3 billion to France, and $1.6 billion to China. In addition, Canada operated a similar program of aid to Britain, and Britain had its own program of aid to others, especially the Societs.