By Dan Peleschuk and Mark Trevelyan (Reuters) -Ukrainian President Volodymyr Zelenskiy won diplomatic backing from Europe and the NATO alliance on Sunday ahead of a Russia-U.S. summit this week where Kyiv fears President Vladimir Putin and President Donald Trump may try to dictate terms for ending the 3-1/2-year war.

Not for the first time, European capitals are gripped with apprehension that Russian President Vladimir Putin will surgically divide the transatlantic alliance as well as get everything he wants in Ukraine.