The United States has halted some weapons shipments to Ukraine, promised under the Biden administration, as Russia intensifies its attacks. The Pentagon is reassessing inventory levels, citing concerns over low stockpiles. The move may reflect shifting priorities under President Trump, who supports a more restrained global military role. Key munitions being withheld include Patriot missiles and precision artillery. The pause comes amid heavy Russian bombardment, while peace talks remain stalled. Despite providing over $66 billion in aid since 2022, the U.S. is now rebalancing support to maintain domestic readiness, as noted by Pentagon and White House officials.