[After the] 2006 war between Lebanon and Israel ...United Nations (UN) Security Council Resolution 1701 restored calm, but only a tenuous one. While the UN Interim Force in Lebanon (UNIFIL) returned to Lebanon, it failed to prevent the resupply of Hezbollah with an arsenal even more advanced than before the 2006 conflict. The Lebanese and Israeli border may be calm today, but the potential for regional conflict has only grown. If a new conflict erupts, it likely will be deadlier and harder to contain to Israel and Lebanon. Hezbollah now possesses missiles capable of striking not only Haifa, but also Tel Aviv.
The Obama administration, meanwhile, has reached out diplomatically to both Syria and Iran in the belief that a less confrontational approach to conflict resolution might lead the two states to reconsider their rejectionist behavior. It has not worked. While Tehran and Damascus may welcome the incentives inherent in U.S. engagement, both states continue to use proxies to pursue radical aims and undercut stability. Iran may be Hezbollah's chief patron, but Syria is the lynchpin that makes Iranian support for foreign fighters possible. While Israel may be the immediate target of the Iran-Syria nexus, the partnership threatens broader U.S. interests...
...Syria's continued support for terrorists and other foreign fighters undermines any diplomatic gains the United States achieves. Because of Syria, UN Security Council Resolution 1701 has failed to prevent Hezbollah's rearmament. Meanwhile, the [Iranian Revolutionary Guards] has more political power now than at any previous point in its history. As such, statements by its commander that "in the near future, we will witness the destruction of Israel, the aggressor, this cancerous microbe Israel, at the able hands of the soldiers of the community of Hezbollah," should raise concerns in Washington and European capitals about the possibility of a regional conflagration.
Recent reports that Iran transshipped gas masks and chemical weapons through Syria to Hezbollah should only heighten concern as the Islamic Republic increases its defiance in international discussions about its nuclear activities. Across the U.S. political spectrum, analysts agree that, should Israel, the United States, or any other power strike at Iran's nuclear facilities, the Islamic Republic would respond, at least in part, by activating its proxy terrorist networks.
Palestinian groups in Gaza, Hezbollah in Lebanon, and foreign fighters in Iraq all have Syrian support in common.
Not only Hezbollah's rhetoric but also its track record suggest a willingness to attack Western targets, should war against Iran erupt.
Given both the circumstances and the stakes, it is ironic that U.S. officials continue to accept the fiction of Syrian sincerity. As difficult as stopping terrorist supplies may be, the likelihood that proxy groups will voluntarily forfeit their capability is low, and the cost of allowing terrorists to use such arms is high.