The United States is preparing to shut down a military-run mission in Gaza that supports ceasefire monitoring between Israel and Hamas and coordinates increased aid, according to multiple reports citing seven diplomats. The decision follows delays tied to a stalled U.S. plan associated with the Trump administration, the sources say. The mission, described consistently across outlets, functions as the U.S. flagship presence for verifying or monitoring aspects of the ceasefire and helping enable logistics and delivery efforts for humanitarian assistance in Gaza. While the reports do not provide detailed timing of the closure beyond the expectation that it is set to occur, they frame the move as linked to the lack of progress on the broader policy and implementation plan. The accounts attribute the information to diplomats who are familiar with the internal discussions and the status of negotiations. Overall, the sources converge on the same core point: the U.S. military-run Gaza operation that monitors the ceasefire and supports aid is moving toward closure because the intended plan has not advanced as expected.