U.S. President Donald Trump’s increasingly strained relationship with Ukrainian President Volodymyr Zelensky is raising fresh questions about the future of American support for Kyiv. Reports suggest Ukraine is facing shortages of Patriot interceptor missiles as Russian ballistic missile attacks continue to threaten cities and critical infrastructure. Meanwhile, reported restrictions involving Starlink and Starshield have intensified debate over Washington’s influence on Ukraine’s battlefield capabilities. Trump has also criticised Zelensky’s commitment to peace negotiations, while disagreements over Russian oil refineries, energy supplies and a proposed energy truce have added to tensions. Could these disputes reshape U.S.-Ukraine relations and complicate Kyiv’s defence strategy?