2 things:
1 - Current Visegrad group leader (Hungary) is not going. Fairly understandable, considering it's both Memorial Day (?) in Hungary and leading into point 2:
2 - wow what a selfless and totally brave act going to a currently active warzone jesus christ. Absolutely mental. The purpose? "At such breakthrough times for the world, it is our duty to be where history is forged; because it is not about us, but about the future of our children who deserve to live in a world free from tyranny," Morawiecki said in a Facebook post on Tuesday." Good lord.