RIYADH - Under King Salman, Saudi Arabia is expanding its confrontation with Iran well beyond the Middle East, no longer relying heavily on Western allies to smother Tehran's ambitions outside the Arab world.Since Salman came to power early last year, and Tehran struck a nuclear deal with world powers, Riyadh has adjusted its strategy for countering the efforts of its Shi'ite Muslim rival to build influence in Africa, Asia and even Latin America.Most notably, the Sunni power has used Muslim networks to push states into cutting off contacts with Iran, including by creating an Islamic Coalition against terrorism without inviting Tehran to join. "Iran is the one that isolated itself by supporting terrorism," Foreign Minister Adel al-Jubeir told a recent news conference. "That is why the world reacted to Iran, and particularly the Islamic world, and basically said 'enough is enough'."Tehran denies it sponsors terrorism, and points to its record of fighting the Sunni Muslim militants of Islamic State through backing for Shi'ite militias in Iraq and President Bashar Assad in Syria.Riyadh is alarmed by Tehran's support for the Shi'ite Hezbollah movement in Lebanon, and cut off military aid to the Beirut government after it failed to condemn attacks on Saudi diplomatic missions in Iran. Likewise, Saudi forces have launched a war on Iranian-allied Houthi rebels in Yemen.But all this is part of its long-standing diplomatic, economic and military efforts to contain what it sees as a pernicious expansion of Iranian activity in Arab nations. Now it is attempting to orchestrate support elsewhere, including from countries such as Pakistan and Malaysia through its creation last November of the coalition against terrorism. "In many ways the dimensions of the competition between Iran and Saudi Arabia are beginning to go beyond the Middle East. This is an interesting development that historically hasn't been the case," said Mehran Kamrava, a professor at Georgetown University-Qatar.OLD ORDER DEADThe strategy partly responds to implementation of the nuclear deal in January. Riyadh fears this will give Iran more scope to push its interests internationally by releasing it from many of the sanctions which have crippled its economy.With even the United States now saying Western banks can resume legitimate business with Tehran, the Saudis believe their main Western ally is gradually disengaging from the region."They understand the old international order is dead and they have to take responsibility," said a senior diplomat in Riyadh.But the strategy is also driven by King Salman's belief that Iranian influence has grown only because nobody has stood up to it, said Mustafa Alani, an Iraqi security expert with close ties to the Saudi interior ministry.The coalition against terrorism falls into this context. When chiefs of staff from 34 Muslim states met after a joint military exercise in late March, a cartoon in the Saudi daily Asharq al-Awsat, owned by the ruling family, showed a bomber dropping leaflets with a no-entry sign onto Iran.The coalition, which caused some confusion as to its scope and membership when Riyadh first announced it, is now moving forward and work to establish a "coordination center" may be formalized during the Muslim holy month which starts shortly. "The next step is the meeting of defense ministers, perhaps during Ramadan. At the same time we prepare a coordination center in Riyadh," said Saudi Brigadier General Ahmed al-Asseri.This center will have permanent staff members from each participating country, Asseri said, and would be a place where states could either request help in dealing with militancy or offer military, security or other aid.