you seem to completly misunderstand that judaism does not support the zionist military enterpise.
with the obvious exceptionn of divergents like Kook, mainstream Torah Jews do not go to the IDF because it is forbidden.
we don’t make calculations, exceptions, or excuses. We have gedolim who have been clears as day that it is better to leave eretz yisroel than join the kofrim in their sins.