How Much U.S. Has Given Israel and How Much U.S. Military Has Spent to Protect It, Since the Gaza War Began

Since the Gaza war began on October 7, 2023, the United States has poured massive financial and military support into Israel, marking one of the largest aid efforts in modern U.S. history. According to recent studies, Washington has provided an estimated $21.7 billion in military assistance to Israel over the past two years — about $17.9 billion during the first year of fighting and roughly $3.8 billion in the following months. These figures represent a combination of direct arms transfers, financial aid, and replenishment of Israel’s missile defense systems such as Iron Dome and David’s Sling.

Much of this funding came from emergency appropriations and presidential drawdowns, which allowed the U.S. to deliver weapons and ammunition directly from its own stockpiles without waiting for new contracts to be approved. Within weeks of the October 2023 attacks, U.S. aircraft were flying shipments of artillery shells, precision-guided bombs, and interceptors to Israeli bases. Congress later formalized these actions through a $14.1 billion supplemental package in early 2024 that reimbursed the Pentagon and expanded Israel’s access to advanced defense systems. In early 2025, the U.S. approved another $8 billion in arms sales, ensuring a steady flow of weaponry in the years ahead.

But beyond financial aid, the U.S. has spent billions more on its own military operations in the Middle East to shield Israel from regional threats. Analysts at Brown University’s Costs of War project estimate that between October 2023 and September 2025, American military operations related to the Gaza war cost between $9.6 and $12 billion. These expenses cover the deployment of aircraft carriers, fighter jets, missile-defense batteries, and surveillance assets in the eastern Mediterranean and Red Sea. The U.S. Navy maintained carrier strike groups, such as the USS Gerald R. Ford and USS Dwight D. Eisenhower, near Israel’s coast for months, acting as a visible deterrent to Iran-backed militias and providing rapid-response capabilities if the conflict spread.

American forces also launched limited air and missile strikes on groups like the Houthis in Yemen, who had been targeting Red Sea shipping routes in protest of the Gaza war. These actions, while not directly part of Israel’s operations, were considered essential to protect Israel and maintain regional stability, according to U.S. defense officials. Together with increased patrols, intelligence flights, and logistics costs, they formed a significant share of Washington’s wartime spending.

The overall U.S. investment — both in aid to Israel and in its own regional missions — now totals between $30 billion and $35 billion since the start of the conflict. This figure represents not only direct support for Israel’s military campaign but also the cost of sustaining America’s wider strategic presence in the Middle East. Officials argue that such support is necessary to deter Iran and maintain the balance of power, while critics point out that it deepens U.S. involvement in a war that has caused widespread civilian suffering in Gaza and strained Washington’s global image.

Even as the fighting enters its third year, shipments of U.S. arms and funds continue, and naval assets remain stationed near the conflict zone. The financial and operational commitment underscores the depth of Washington’s alliance with Israel — one that now extends far beyond arms sales, involving continuous military engagement, strategic cover, and billions in taxpayer dollars to sustain a war that shows few signs of ending soon.