<ul data-eligibleForWebStory="false">US President Donald Trump is set to speak with Russian leader Vladimir Putin on Thursday in an effort to broker an end to the war in Ukraine.The Trump administration recently paused the transfer of artillery rounds and air defenses to Ukraine, citing concerns over US munitions stockpiles.Trump's previous attempts to end the Ukraine war have faced challenges, with Putin refusing calls for a halt to fighting.Trump has indicated he won't renew US military support for Ukraine, which is set to expire this summer.