The U.S. Defense Department (DOD) has halted shipments of some air defense missiles and other weapons previously promised to Kyiv out of concerns over the size of U.S. stockpiles, Politico reported on July 1, citing sources familiar with the matter.

The suspension comes as Ukraine faces a shortage of air defense munitions along with increasingly intense and deadly Russian bombardments. In June 2025, Russia launched 5,337 Shahed-type drones at Ukraine, shattering its previous monthly record.

Pentagon policy chief Elbridge Colby made the decision to pause the aid deliveries after conducting a review of U.S. munitions stocks, three sources told Politico. Colby was reportedly concerned about dwindling levels of artillery rounds, air defense missiles, and precision munitions.

Among the items being held back from Ukraine are over two dozen Patriot air defense missiles, over two dozen Stinger air-defense systems, precision artillery rounds, Hellfire missiles, drones, and more than 90 AIM air-to-air missiles that Ukraine launches from F-16 fighter jets. The Washington Post reported that the weapons were already in Poland being prepped for delivery to Ukraine.

Colby made the decision in June, amid a surge in Russian mass aerial attacks against Ukraine. The White House later confirmed the pause.

The Pentagon's decision "was made to put America's interests first following a DOD review of our nation's military support and assistance to other countries across the globe," White House Deputy Press Secretary Anna Kelly said in a statement issued after Politico published the story.

"The strength of the United States Armed Forces remains unquestioned — just ask Iran," she said.

Since his inauguration in January, U.S. President Donald Trump has not approved any additional military aid packages for Ukraine. Defense Secretary Pete Hegseth also announced recently that the U.S. will reduce the total aid it sends to Ukraine in its upcoming defense budget.

In his evening address on July 2, President Volodymyr Zelensky said Ukrainian and U.S. officials are working through the aid issue at a "working level," including discussions on critical air defense support.

Ukraine's Defense Ministry said it has not received any formal notification of delays or cancellations but has requested urgent consultations with U.S. defense officials.

The Foreign Ministry also summoned U.S. Charge d'Affaires John Ginkel, warning that "any hesitation" in military support would encourage further Russian aggression.

The Kremlin welcomed the decision, with spokesperson Dmitry Peskov saying, "The fewer weapons that are supplied to Ukraine, the closer the end of the (war)."

NATO Secretary General Mark Rutte expressed understanding of Washington's desire to safeguard its stockpiles but said, "Ukraine cannot do without all the support it can get."