Israel will never rely on anyone, including the US, which had proven time and again that they are not a reliable ally. With the exception of WW!!, the US abandoned every war and ally and run with its tail between its legs. This is not a criticism of the US at all...the US will always protect its own interests and how they perceive their interests to be. Israel will do the same and every country would do the same. Any other speculations on how the US or other countries will behave and act is nonsense.
Japan arrests U.S. activist featured in award-winning documentary 'The Cove' (DPA)
from the article: World powers urge Iran to accept standing nuclear offer