I can imagine a scenario where the US intelligence community saw that Ukraine was lost and winding down, and was looking for a follow-up conflict (we always need to fight the Forever War). If our Intelligence people knew the attack was coming against Israel, I don’t think they would try to warn them or try to stop it. War is a useful distraction if your president is senile.
Give it a rest. The Israelis and arabs have been going at each other since the beginning of time.