What religion has to do with Israel?

Answer 1

Your question may be asking one of two things:

1) "What religion is associated with Israel?" or "What religion predominates in Israel?" to which the answer is simple: Judaism

2) If your question is asking "How does religion factor into Israeli politics?" that is a long and difficult question to answer that would require an in-depth analysis of Israeli social groups, political parties, religious doctrines, and the domestic effect of the international conflicts that Israel is embroiled in. Suffice it to say, different religious factions pull in different directions for different reasons.