Published: 12:39pm, 7 Oct 2025Updated: 12:45pm, 7 Oct 2025
The United States under the Biden and Trump administrations has provided at least US$21.7 billion in military assistance to Israel since the start of the Gaza war two years ago, according to a new academic study published Tuesday, the second anniversary of the October 7, 2023, Hamas attacks in Israel that provoked the conflict.
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Another study, also published by the Costs of War project at Brown University’s Watson School of International and Public Affairs, says the US has spent roughly US$10 billion more on security aid and operations in the broader Middle East in the past two years.
While the reports rely on open source material for most of their findings, they offer some of the most comprehensive accountings of US military aid to close ally Israel and estimated costs of direct American military involvement in the Middle East.
The State Department had no immediate comment about the amount of military aid provided to Israel since October 2023. The White House referred questions to the Pentagon, which oversees only a portion of the assistance.

The reports, which draw on publicly available notifications to Congress, were released as US President Donald Trump presses for an end to the war in Gaza. Israeli and Hamas officials launched indirect talks in Egypt this week after Hamas accepted some elements of the US plan that Israel also said it supported.
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