Body language experts observed initial caution, followed by increasing warmth and openness between the US and Russian presidents during their meeting in Anchorage.
The first face-to-face meeting between Trump and Putin since 2019 lasted about 5 hours, from their airport greeting to the end of the press conference.
Experts believe the most likely outcome of the Trump-Putin summit is a framework agreement that serves as a temporary truce, but won't immediately end the conflict in Ukraine.
Former President Trump may bring to the negotiating table with President Putin a series of economic proposals as leverage to thaw relations and move towards ending the war in Ukraine.
The US will mobilize numerous forces to monitor the area hosting the Trump-Putin summit and will scramble fighter jets to intercept any suspicious aircraft.
Alaska's Elmendorf-Richardson Joint Base, a strategically important location during the Cold War, is the chosen venue for the summit between Putin and Trump.