DUBAI — World leaders have welcomed a tentative deal reached by Iran and the United States to end their conflict, expressing hope for a potential path to lasting peace in the region.The US and Iran said they reached a deal to end the war on all fronts, including Lebanon, and reopen the vital Strait of Hormuz, though they offered little indication on the thorny question of Tehran's nuclear program.“The deal with the Islamic Republic of Iran is now complete,” US President Donald Trump announced on Sunday on his Truth Social platform. “Ships of the world, start your engines. Let the oil flow!”Kazem Gharibabadi, Iran’s deputy foreign minister, said a broader deal that would cover sanctions relief for Iran would be worked out during a 60-day ceasefire.Pakistani Prime Minister Shehbaz Sharif said the accord is due to be signed on Friday in Switzerland in what is being described as a major breakthrough after months of fighting that has killed thousands of people and sent global energy prices soaring.Sharif congratulated Washington and Tehran for their “commitment to finding a diplomatic solution to the conflict” and thanked Saudi Arabia, Qatar and Turkey for their contribution in securing the agreement.In a post on X, Saudi Arabia's Ministry of Foreign Affairs welcomed the agreement “to end military operations and commence detailed negotiations over a 60-day period aimed at reaching a permanent agreement”.The Qatari Ministry of Foreign Affairs expressed its “appreciation for the determination of both the American and Iranian sides and their commitment to moving forward in resolving differences through negotiations and peaceful means”.Minister of State Mohammad bin Abdulaziz Al-Khulaifi said he hoped the deal “will serve as a catalyst for broader efforts to advance stability and address outstanding issues through responsible and constructive engagement”.“I view the agreement reached between the United States and Iran as an important development for establishing peace and tranquillity in our region, and I welcome it with satisfaction,” Turkish President Recep Tayyip Erdogan posted on X.“As Türkiye, we will continue to support all efforts aimed at establishing peace, stability, and tranquillity in our region, and to contribute to lasting solutions based on diplomacy and international law.”The UAE stressed the need to “prioritize dialogue, diplomacy, and adherence to international law in a manner that enhances security and stability in the region”.The Ministry of Foreign Affairs called for “full compliance with the terms of the agreement,” including “an immediate and comprehensive halt to all hostile actions”.It praised the diplomatic efforts led by Trump and reiterated the UAE’s support for all initiatives that “enhance security and stability”.Kuwait has expressed a “warm welcome” for the memorandum of understanding reached between the US and Iran.It also commended the role played by Pakistan and Qatar in contributing “to bridging viewpoints and creating the conditions for reaching this important understanding”.Senior European officials welcomed the deal between the United States and Iran on Monday, saying Europe was ready to contribute to "a lasting peace.""I look forward to an end to this costly war and to the full restoration of freedom of navigation in the Strait of Hormuz," António Costa, the president of the European Council representing member states, wrote in a post on X."Weapons must now fall silent," Costa urged, saying the "European Union is ready to contribute to advancing a comprehensive strategy for lasting peace across the Middle East."European Commission chief Ursula von der Leyen stressed the "priority now is its swift and full implementation," calling on "all parties to respect Lebanon's sovereignty and territorial integrity and implement a genuine ceasefire.""There can be no peace in the Middle East while Lebanon is in flames," she warned, adding that the reopening of Hormuz was "essential for regional stability and the global economy" and that a final deal "should end Iran's nuclear and ballistic programs and its destabilising activities in the region."Heading into talks with the bloc's foreign ministers, EU top diplomat Kaja Kallas said ministers would discuss Monday "how the EU can be closely involved in the next phase."British Prime Minister Keir Starmer called the deal a “hugely important” step in ending the war and said “toll-free freedom of navigation must now be restored in the Strait of Hormuz” as he offered to support mine clearance operations if needed.“For any peace to endure, it is essential that the commitments made, particularly in relation to Iran’s nuclear programme, are robust, verifiable and fully implemented,” Starmer said in a post on X.France's president said that a military mission set up by Paris and London to help with Strait of Hormuz traffic was ready to deploy, following the announcement of a deal to end the war.Emmanuel Macron, who is due to host US counterpart Donald Trump for a G7 meeting later on Monday, said that the UK-France mission's "assets are in place and ready to be deployed.""The resumption of maritime traffic, without restrictions or tolls, is an essential condition for regional stability and the global economy," he said in a post on X.Macron also said Paris would support “the determined efforts of the Lebanese authorities” to restore the sovereignty of the state, which he said could alone ensure “Lebanon’s stability and territorial integrity and meet the needs of its populations”.German Chancellor Friedrich Merz, while welcoming the agreement, said it could pave the way towards a “reinvigorated global economy and a more secure Middle East”.“It is crucial to implement it with determination,” he added.Meanwhile, Israeli Defense Minister Israel Katz said his country won’t withdraw from land it occupies in Lebanon.“This is the main lesson from the events of October 7,” he said. “Prime Minister Netanyahu made this clear to US President Trump and other senior American officials, and I also clarified it yesterday to US Defense Secretary Pete Hegseth.”Katz warned Israel will strike Iran with “great force” if it attacks Israel over its strikes in Lebanon.Finance Minister Bezalel Smotrich condemned the agreement with Iran, calling it “bad for Israel and for the entire free world”.In a statement on X, Smotrich said the joint campaign against Tehran had already achieved “many achievements in weakening Iran”, insisting those gains “will not go to waste”.“We will have to continue the campaign to topple the regime ourselves and in creative ways, and ensure that Iran will never have nuclear weapons,” he said.