Until Syria finds an Arab strategic defense alternative to Iran or until the United States decides to mediate unbiased peace making between Syria and Israel, the bilateral Syrian -- Iranian alliance will endure, unless Washington decides to repeat in Syria its failed invasion of Iraq, which all indications render a mission impossible.
To end the Israeli occupation of the Golan Heights and other Arab Israeli -- occupied lands is the shortest US -- Israeli path to dismantling the Syria -- Iran alliance and to peace in Syria and the region.
That only would ensure that Syria will shift its outward focus strategically from looking for strategic balance with Israel to liberate its occupied land to the development of its society internally.
Ending decades of confusing the "national interest" of the United States as one and the same thing as that of Israel will for sure lay a solid ground not only for a Syrian but as well for an Arab - US constructive and just relationship built on mutual respect and common interests within the framework of international law and the UN charter.
This is the only and shortest path to peace in Syria and the Middle East, the time saving recipe and the less expensive in human as well as in economic resources. Herein the US can secure its regional "vital" interests "peacefully" without dragging its people and the region from one war to another incessantly.
Peace and injustice cannot coexist.