When Iran fired missiles across its border into Pakistan’s Baluchistan province on 16 January, it announced that its targets were bases belonging to the anti-Iran insurgent group known as Jaish al-Adl (Army of Justice). The Associated Press reported that “a military response from cash-strapped Pakistan” was unlikely, but within 48 hours Pakistan retaliated with missiles and sent fighter jets into Iranian airspace. Pakistan claimed that it was targeting anti-Pakistani insurgents operating from Iranian territory.
As anxiety about Iran asserting power beyond its borders has increased after Hamas attacked Israel on 7 October 2023, and after Iranian proxies in Yemen responded to Israeli counter-attacks in Gaza, any cross-border Iranian actions are going to cause alarm—especially if they are conducted against Pakistan, a nuclear power with a Sunni-dominant political culture.
It is true that an argument can be made to dial down worries about the Iran-Pakistan missile exchange. Iran, Pakistan, and Afghanistan all contain large areas of territory dominated by the Baluch people. Indeed, Baluchistan is Pakistan’s largest province in land area—but also its least populated and arguably least developed. Although military-heavy, authoritarian, and ruthless governments might be assumed to have the means to protect their own borders, Iran, Pakistan, and Afghanistan have never been able to assert their sovereign power convincingly in Baluchistan. Relations between the three states being fraught, Baluchistan has for years been a reliable source of irritation for its putative overlords and a place for them to contest with each other. Trouble in Baluchistan is hardly new.
But for just that reason the current level of Pakistan-Iran conflict seems disproportionate. Jaish al Adl had killed a dozen men at a police station in Iran, a depressingly common form of Baluchi skirmishing. Lobbing missiles over a border, in retaliation for such a familiar provocation, was new, as was Pakistan’s emphatic response.
The Iranian action may be easier to understand. Most analysts believe that it was a show of strength at a time when the Iranian regime feels threatened. The killing of 84 people gathered In Kerman at the grave of the Iranian major general Qassem Soleimani—who was assassinated on 3 January 2020 in an American drone strike—was yet another outrage by Islamic State and may have been encouraged by Pakistan. There is no doubt that Islamic State had a particular interest in Soleimani, who had been the mastermind behind Iranian force projection in Iraq and Syria against Sunni extremists. He had therefore become both a source and a symbol of Iran’s use of force beyond its own borders, which was why the US decided to assassinate him. The two Islamic State suicide bombers who attacked his grave on the anniversary of his death came from Khorasan, which is, like Baluchistan to its south, a large border region that no state has been able to control.
More broadly, Iran's theocratic Shia regime has often found itself at odds with Sunni Pakistan. Shia minorities in Pakistan have faced attacks from Sunni militants for decades, with thousands killed in the past 30 years. Iran has long tried to export its Shia ideology to border countries and elsewhere in the vicinity, which is hardly appreciated by most Pakistanis. The close relationships that Pakistan maintains with Persian Gulf monarchies, especially with Saudi Arabia, also fuel Iranian hostility. The nuclear competition in the region has been driven in part by Saudi investment in Pakistani nuclear-weapons projects and by Saudi hopes of obtaining a nuclear arsenal of its own.
On the Pakistani side, these existing patterns of conflict are worsened by Iranian ties with India. The Foreign Ministry of India issued a statement that supported the Iranian attacks. Meanwhile one of the few potential bright spots in the Pakistani economy, the Chinese-built megaport at Gwadar, is within Pakistani Baluchistan and acutely vulnerable.
Proxy warfare is a sometimes underestimated factor in economic stagnation. Inward investment to Pakistan has plummeted since its 2007 high. Iran’s inward FDI peaked earlier, in 2002. Both are now at 1970 levels. But Iran is significantly wealthier in per capita terms, due mainly to oil rents—about 20% of GDP in 2020, compared to only nominal amounts in Pakistan. This seems to have the effect of making Iranian strategists more willing to spend on foreign adventures. Investors need to take current and likely patterns of proxy warfare into account. This unfortunate reality became clear to the Chinese in Gwadar and has become clear to the world as Iran’s Houthi proxies harry shipping in the Red Sea.