sentences:  The United States is the largest single supplier of military equipment to Israel.According to the U.S. Congressional Research Service, between 1998–2005 the U.S. accounted for the vast majority of Israel's arms transfer agreements, accounting for $9.1 billion out of $9.5 billion worth of agreements.Israel deals directly with U.S. companies for the vast majority of its military purchases from the United States, though it requires permission from the U.S. government for specific purchases.