Lebanon, the Palestinians and possibly Syria. However when these countries target Israeli civilians Israel must no longer abide by international al law. Instead israel should target not only enemy combatives but also there supporters. Unfortunately Israel's enemies only respects brute force and in order to win the war Israel will have to be brutal resulting in many civilian and military deaths and injuries.
Palestinian teen arrested for allegedly rioting in East Jerusalem (Haaretz)
from the article: Hezbollah: Israeli attack on Iran would set Middle East ablaze