Washington, June 15 -- US President Donald Trump have announced a landmark peace deal between the US and Iran, authorising the crucial reopening of the strategically important Strait of Hormuz and the immediate cessation of military operations in Lebanon.The deal was finalised on Trump's 80th birthday, capping a tumultuous week of war and diplomacy, including recent Israeli strikes in Beirut.The United States and Iran finalised a deal to end their 107-day war and open the Strait of Hormuz, the narrow waterway used to ferry one-fifth of the global oil supplies, on Friday after an in-person signing of the agreement in Switzerland.US President Donald Trump made the announcement on Truth Social on Sunday evening, easing pressure on the global...