What to know about U.S. military support for Israel after a year of war

Israel has received more U.S. military aid than any other country since World War II. Here is the assistance it has received since the war in Gaza began.

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U.S. Army Cpl. Rogelio Argueta gives commands during THAAD missile defense drills at Andersen Air Force Base in Guam in 2019. (Abaca/Reuters Connect)

The United States has provided Israel with billions of dollars’ worth of security assistance and weapons over the past year since Israel began retaliating for Hamas’s Oct. 7, 2023, attack. In addition, the Biden administration has deployed the U.S. military in direct support of Israel.

The Gaza conflict has since broadened into an invasion of southern Lebanon, amid fears of an even wider war. Ahead of Israel’s anticipated response to Iran’s missile attack on Israel earlier this month, the United States said Sunday that it would send a THAAD, or Terminal High Altitude Area Defense antimissile system, to Israel along with the U.S. military personnel needed to operate it.

The deployment, which places U.S. troops on the ground acting in Israel’s defense, comes after the U.S. military helped defend Israel against two large-scale Iranian missile attacks in April and October.

THAAD is one of the most advanced U.S. missile defense systems. It fires interceptors to destroy incoming ballistic missiles. Each interceptor is estimated to cost tens of millions of dollars, and a standard battery contains 48 interceptors.

Separate from the U.S. military’s own efforts in defense of Israel, Washington has significantly increased the amount of military assistance funding sent to Israel and has approved more sales of arms and equipment to the country. Israel had already received more U.S. military aid — and more U.S. aid of any type — than any other country since World War II.

Immediately after Hamas’s attack a year ago, President Joe Biden said he would “make sure Israel has what it needs to take care of its citizens, defend itself, and respond.” The spiraling death toll in Gaza — which now exceeds 42,000, according to the Health Ministry there — has led to increased scrutiny of Western military support for Israel.

Middle East conflict

The Israel-Gaza war has gone on for over a year, and tensions have spilled into the surrounding Middle East region.

The war: On Oct. 7, Hamas militants launched an unprecedented cross-border attack on Israel, killing about 1,200 people and taking civilian hostages. See photos and videos of how the deadly assault unfolded. Israel declared war on Hamas in response, launching a ground invasion that fueled the biggest displacement in the region since Israel’s creation in 1948. In July 2024, Hamas leader Ismail Haniyeh was killed in an attack Hamas has blamed on Israel.

Hezbollah: Hostilities between Israel and Hezbollah, a militant organization backed by Iran, have escalated over the past year, leading to an Israeli invasion of southern Lebanon. Israel’s airstrikes into Lebanon have grown more intense and deadly, killing over 1,400 people including Hasan Nasrallah, Hezbollah’s longtime leader. The Israel-Lebanon border has a history of violence that dates back to Israel’s founding.

Gaza crisis: In the Gaza Strip, Israel has waged one of this century’s most destructive wars, killing tens of thousands and plunging at least half of the population into “famine-like conditions.” For months, Israel has resisted pressure from Western allies to allow more humanitarian aid into the enclave.

U.S. involvement: Despite tensions between Israeli Prime Minister Benjamin Netanyahu and some U.S. politicians, including President Biden, the United States supports Israel with weapons, funds aid packages, and has vetoed or abstained from the United Nations’ cease-fire resolutions.

History: The roots of the Israeli-Palestinian conflict and mistrust are deep and complex, predating the establishment of the state of Israel in 1948. Read more on the history of the Gaza Strip.