The truth is simple. Israel cannot rely on the USA regarding anything. Everybody will wait to see what happens and hope that the Israeli will perform ther usual miracle. what is now worse is that the arrogant and incompetent USA are trying to block Israel and bend them to do what they want and need for themselves.
Islamic State militants blow up ancient Arch of Triumph in Palmyra (Reuters)
from the article: Israel can't launch strike against Iran on its own