President Donald Trump’s meeting in Alaska with Vladimir Putin could be a decisive moment in the war in Ukraine and in the U.S. leader’s anomalous relationship with his Russian counterpart.

President Donald Trump has often bragged about his warm relationship with Russia’s Vladimir Putin. But in the months leading up to the leaders’ first meeting in six years, Trump began asking Europeans and White House aides what’s changed about his counterpart.

If everything goes according to plan, this trip will mark Putin's eighth visit to the U.S. during his presidency, a role he has held for 20 years across two separate terms. Trump is hosting the meeting to try to push Moscow into a peace deal with Ukraine.