The Iranians are at the borders
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Although Hezbollah and Syrian President Bashar Assads army have retaken large parts of Syria (with help from the Russians), the former is in no hurry to bring its troops back to Lebanon. This has broad significance. Hezbollahs transitory military positions throughout Syria have become temporary, and the temporary outposts are in the process of becoming permanent, with soldiers barracks, prefabricated structures, and everything that indicates an established position or a transition to a permanent presence on the ground.
Nasrallah and his organization are turning Syria into Hezbollahs backyard as part of Irans campaign to create a Shiite crescent between Tehran and the Mediterranean Sea. For Israel, this means that Hezbollah, together with Iran, will be able to set up a local Shiite army in Syria or on the Syrian Golan Heights an army that will operate against Israeli targets without making Lebanon pay the price.
Even as decision-makers in Israel proclaim a policy that Lebanon will pay for any escalation by Hezbollah, the organization itself could try to draw the fire away from Lebanon and use Syria as the preparation ground for its terror attacks, allowing Hezbollah to have it both ways. The advantages do not end there, though: Hezbollah will have access to, and acquire ownership of, advanced weapons and intelligence formerly in the possession of the Syrian army. It will gain technological equipment, weapons that violate the balance of power, and pretty much everything else.
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http://www.timesofisrael.com/the-iranians-are-at-the-borders/