Saudi Arabia and Iran are beginning a competition for influence with the new government led by Imran Khan in Pakistan. Both have big stakes involved. The Saudi position is much weakened by the war in Yemen, which is unpopular in Pakistan.

Pakistan’s position is crucially important to both Riyadh and Tehran. Pakistan is the second-most populous country in the Muslim world and the only Muslim state with a nuclear arsenal. Over 1.5 million Pakistanis live in the kingdom. Pakistan and Iran share a 900-kilometer (559-mile) border in Baluchistan. Pakistan’s population includes a significant Shiite minority, perhaps as much as 30% of the country. In the Saudi-Iranian competition for influence in the Islamic world, Pakistan is crucial.

Prime Minister Khan says he wants Pakistan to play a “positive and constructive role” between Saudi Arabia and Iran. He has spoken by phone with the leadership in both countries since his election and is expected to travel to both early in his term. He has expressed interest in reducing tensions between the two and lowering sectarian violence. Khan visited the kingdom earlier this year, after his marriage, to make the pilgrimage to Mecca.

Pakistan and Saudi Arabia have traditionally been close allies. Most famously they worked together with the CIA to defeat the Soviet occupation of Afghanistan in the 1980s. The Pakistani army had stationed a reinforced brigade group in Saudi Arabia to defend the royal family from threats external and internal. Saudi Arabia’s economic assistance to Pakistan has been extensive and could be crucial for Khan’s government as it deals with major economic challenges.