By Catarina Demony and Olena Harmash LONDON/KYIV (Reuters) -With just one day to go until a U.S.-Russian summit on ending the war in Ukraine, its president, Volodymyr Zelenskiy, visited London on Thursday to shore up European support for efforts to prevent any agreement that would carve up Ukrainian land.

Russian President Vladimir Putin praised U.S. President Donald Trump’s efforts to end the war in Ukraine, more than three years after Moscow launched its invasion, as the two leaders prepared for a pivotal U.

Russian President Vladimir Putin on Thursday praised President Donald Trump for his efforts to broker an end to Moscow's invasion of Ukraine.