I feel it’s a seismic shift in the position of the USA as a world power. Netanyahu has stopped listening and has faced no repercussions, so naturally Zelenskyy is doing the same. Completely withdrawing support for both Israel and Ukraine doesn’t appear to be in the USA’s best interests.
This could be a stretch but maybe it has to do with Trump and the likelihood he’s going to turn around and tell both sides to quit prolonging these wars and either finish off their opponents or get to signing a peace treaty.
For Israel it means escalating (as evidenced by how they’re poking the other bear - Iran - in the region) and for the Ukraine doing as much damage as possible to weaken the Russians so a peace treaty appears the better option over continuing to fight against an opponent who won’t lay down.
I could also be talking out of my exhaust pipe. I’ve been paying less and less attention to these conflicts the longer they’ve gone on.