Joe Biden leaves on Sunday for Europe, where he’ll spend time tending to alliances that have been tested by Russia’s invasion of Ukraine.

The first stop is London, where the U-S President will meet on Monday with King Charles for the first time since the new monarch was crowned.

Next up is the centerpiece of the trip, the NATO summit in Lithuania.  Alliance leaders will debate the war and revise plans for dealing with Russian aggression.

The final stop is Helsinki, where Biden is expected to celebrate the expanding NATO alliance, with Finland as its newest member.