I think Iran is at odds with pakistan because of their relationships with the US among other things https://en.wikipedia.org/wiki/Iran%E2%80%93Pakistan_relations Iran–Pakistan relations covers the bilateral relations between the adjacent states of Iran and Pakistan. After Pakistan gained its independence in August 1947, Iran was one of the first countries to recognize its sovereign status.[1] Relations between Shi'a-majority Iran and Sunni-majority Pakistan became greatly strained due to sectarian tensions in the 1980s, as Pakistani Shi'a Muslims claimed that they were being discriminated against under the Sunni-biased Islamization program being imposed throughout Pakistan by the military dictatorship government of then-President, General Muhammad Zia-ul-Haq.[2] Following the 1979 Islamic Revolution, Iran and Saudi Arabia (considered the "leading state authority" of Shi'a and Sunni Muslims, respectively) gradually began to use Pakistan as a battleground for their proxy sectarian conflict, and Pakistan's support for the Deobandi[3] Taliban organization in Afghanistan during the civil wars in the 1990s became a problem for Shi'a Iran, which opposed a Taliban-controlled Afghanistan.[4] Nevertheless, both countries continue to cooperate economically where possible and are forming alliances in a number of areas of mutual interest, such as fighting the drug trade along their border and combating the insurgency in the Balochistan region. Iran has also expressed an interest in joining the China–Pakistan Economic Corridor (CPEC) as part of the larger Chinese Belt and Road Initiative.[5][6] Pakistan is one of the few countries where Iranian influence is positively received as per polls conducted by the Pew Research Center. Polls have consistently shown that a very high proportion of Pakistanis view their western neighbour positively.[7][8] Supreme Leader of Iran Ayatollah Khamenei has also called for the sympathy, assistance, and inter-cooperation of all Muslim nations, including Pakistan.[9] Diplomatic relations between the two states have recently improved under the policies of former Prime Minister of Pakistan Imran Khan, who sought to expand Pakistan's relationship with Iran. He has also offered to serve as a mediator between Saudi Arabia and Iran in their ongoing proxy conflict. However, some tensions have remained. ... Well, it's not all rosy, could be worse though