Logios - to hear you talk one would think that all these things were so easy there must be something wrong with Israel for not having done them already. In fact, none of the things your mentioned are simple and it's because Syria, Lebanon, the Palestinians, other Arab states, and finally Iran don't truly want peace. They want an end to Israel, and Israel isn't interested in commiting suicide.
53-year-old Israeli woman lightly wounded by stone-throwing near Efrat settlement (Haaretz)
from the article: Israel has already attacked Iran