The Trump administration is pausing some weapons shipments to Ukraine, including air defense missiles, following a review of military spending and American support to foreign countries, a senior White House official told CNN.

The move blindsided the State Department, Ukraine, European allies and members of Congress, who demanded an explanation from the Pentagon.

Proponents of continued weapons shipments are commending the United States for intervention on account of humanitarian concerns.

When the U.S. Department of Defense (DOD) halted the transfer of critical air defense missiles and other weapons to Ukraine, Kyiv and its partners were caught off-guard and are now left scrambling for clarity on the scope and length of the Trump administration's decision.

US Department of State spokeswoman Tammy Bruce said that the Pentagon's earlier decision concerns only an individual case and does not mean a complete

The U.S. is halting some shipments of weapons to Ukraine amid concerns that its own stockpiles have declined too much.

U.S. Sen. Jerry Moran of Kansas emphasized in a speech the importance of sustained support for Ukraine in the battle against Russia’s invasion and praised President Donald Trump’s

The reactions to the Trump administration’s decision to pause some weapons shipments to Ukraine couldn’t be more illustrative of the conflict: welcomed by the Kremlin, branded “inhumane” by Kyiv.

Groups like IRC that relied on U.S. funding are reeling. Other leading donors, including Britain, are also paring back humanitarian aid as they seek savings to boost defence spending.

An U.S. official says some weapons shipments to Ukraine have resumed, as the country's leader seeks more urgent support from his partners.