From the Summary: "Israel has forged close bilateral cooperation with the United States in many areas. U.S. law requires the executive branch to take certain actions to preserve Israel's 'qualitative military edge,' or QME, and expedites aid and arms sales to Israel in various ways. Additionally, a 10- year bilateral military aid memorandum of understanding--signed in 2016--commits the United States to provide Israel $3.3 billion in Foreign Military Financing and to spend $500 million annually on joint missile defense programs from FY2019 to FY2028, subject to congressional appropriations. In 2021, some Members of Congress have increased their scrutiny over Israel's use of U.S. security assistance, contributing to debate on the subject."
CRS Report for Congress, R44245
Congressional Research Service: https://crsreports.congress.gov/