A more thorough explanation:

Definition: Lend-lease is an agreement made between friendly countries for mutual benefit. It was first introduced in 1941 under the Lend-Lease Act. This act allowed the United States to lend military equipment and supplies to other countries in exchange for land or other resources.

Example: During World War II, the United States provided military aid to Great Britain through the lend-lease program. The U.S. sent weapons, ammunition, and other supplies to help Britain fight against Germany. In return, Britain leased military bases to the U.S. for use in the war.

Explanation: The example illustrates how the lend-lease program worked during World War II. The U.S. provided military aid to Great Britain, which helped them in their fight against Germany. In return, Britain leased military bases to the U.S. for use in the war. This mutually beneficial exchange helped both countries in their efforts to win the war.