Large navy vessels will watch at chokepoints while smaller vessels will patrol key transit lanes, and airborne assets will monitor traffic in the Persian Gulf. This stems from a new coalition officially launched on 7 November from its Bahrain headquarters. It will protect shipping in the troubled waters after a string of attacks that Washington and its allies blame on Iran, threatening the world’s oil supply. Iran denies responsibility for the attacks, and has put forward its own proposals for boosting Gulf security - that pointedly exclude outside powers. The new mission, dubbed Operation Sentinel, will see vessels escorted through the Strait of Hormuz, the strategic chokepoint at the head of the Gulf and the main artery for transporting oil. Australia and the United Kingdom are the main non-Gulf countries to have sent warships to escort shipping. The newest member, Albania, joined on 6 November.