President Trump has temporarily suspended the delivery of all U.S. military aid to Ukraine, affecting over $1 billion in arms and ammunition, until Ukraine demonstrates a good-faith commitment to peace negotiations with Russia. The move escalates tensions between Washington and Kyiv and puts the United States in direct opposition to its major NATO allies. The suspension also benefits President Putin of Russia, who may use the time to press for further territorial gains. The decision comes at a critical moment in Ukraine's war against Russian aggression.