The United States has spent at least a record $23 billion on military aid to Israel and related US operations to defend Israel since October 7th, according to a new paper from Brown University's Costs of War project.
From Brown University's Costs of War project, "United States Spending on Israel's Military Operations and Related U.S. Operations in the Region, October 7, 2023-September 30, 2024":
U.S. spending on Israel's military operations and related U.S operations in the region total at least $22.76 billion and counting. This estimate is conservative; while it includes approved security assistance funding since October 7, 2023, supplemental funding for regional operations, and an estimated additional cost of operations, it does not include any other economic costs.
This figure includes the $17.9 billion the U.S. government has approved in security assistance for Israeli military operations in Gaza and elsewhere since October 7 substantially more than in any other year since the U.S. began granting military aid to Israel in 1959. Yet the report describes how this is only a partial amount of the U.S. financial support provided during this war.