The move "was made to put America’s interests first," a White House spokeswoman said, as U.S. munitions have been depleted in recent years.

The Pentagon is pausing shipments of weapons to Ukraine again after more than three years of deliveries meant to bolster the country’s defenses against invading Russian forces.

Rep. Michael McCaul (R-Texas) said he is probing “very intensely” whether the Pentagon’s freeze is a breach of Ukraine aid legislation that Congress passed in 2024. He also argued the pause is coming “at the wrong time,” weakening Trump’s efforts to pressure Russian President Vladimir Putin to negotiate a peace deal with Ukraine.