At what was billed as an “historic” presidential summit, hastily put together in Alaska on Friday afternoon, the optics were as clear and overshadowing as the vast Chugach mountains glistening over Anchorage in the summer sun.

By Tom Balmforth, Yuliia Dysa and Pavel Polityuk LONDON/KYIV (Reuters) -Ukraine's Volodymyr Zelenskiy flies to Washington on Monday under heavy U.S. pressure to agree a swift end to Russia's war in Ukraine but determined to defend Kyiv's interests - without sparking a second Oval Office bust-up with Donald Trump.