I doubt if they will be able to withstand the invasion alone.
The US proved shameful by saying it would not send troops to the UA. This is the 4th case in the last few years that they have let their allies down the river: Syrian rebels, Kurds, beardless Afghans and now the UA.
Truth be told, they never promised that, but they shouted and spouted a lot, and were beating the war drums into the hero's chest. Like in that joke - hit him one more time, if you dare...
I am very interested in where the British are. Probably Liz Truss is sitting over the UA map and commenting - why do all the cities have Russian names?
A few days ago, Zelensky was a little merry-maker in Munich and made jokes about the Russians, how they hacked his microphone.
youtu.be/631TC3jih3M
It was very funny, very funny.
Perhaps the smartest thing for him would be to get on a plane and go to Moscow as soon as possible. He takes a blank piece of paper and asks where to sign. Everything that fits on one sheet of paper is less horrifying than what can follow.