Using their oil wealth, and weapons smuggling network, Iran has armed Syria, Hezbollah (the Shia militia in southern Lebanon) and Hamas (the Palestinian terrorist group that runs Gaza) with over 50,000 rockets, plus numerous other weapons. Most of the rockets are short range (about 10 kilometers), but several thousand have a much longer reach, and can hit targets throughout Israel. The Iranian master plan is for Hezbollah, Hamas, Syria and Iran to simultaneously fire as many missiles and rockets into Israel as they can. Even if there are no ground forces to follow up such an attack, the casualties (civilian and military) in Israel would be seen as a great Islamic victory, and would demoralize the Israelis. While Israeli defensive moves could do great damage to Syria, Lebanon and Gaza, Iran considers it a reasonable plan. Hezbollah, Syria and Hamas are not so sure, but Iran already has all the rockets and missiles in place.
They may not be so sure, but Hamas and Hezbollah are clearly willing. And after decades of demonizing Jews, could the minority government of Syria withstand public clamor to kill the Jews?
We shall see if Syria wants to take a spear for Iran, too, when push comes to shove. I think we know where Hezbollah and Hamas stand--Iran can count on them.