Ukrainian President Volodymyr Zelenskyy has warned that Friday's meeting between President Donald Trump and Russian President Vladimir Putin "will not achieve anything."

The talks on Friday in Alaska pull the Russian leader out of diplomatic isolation from the West, and Ukrainian and European leaders fear it gives him an opening to sway the American president.

The US-Russia summit lets Putin get back to the top table of international diplomacy and thumb his nose at critics. Here’s what else he stands to gain.