The two countries also have a history of mutual distrust and accuse each other of supporting religious and ethnic rebels within each other`s borders.  Pakistan`s Foreign Ministry stated that Iran had the right to establish barriers on its territory.   However, the Balochistan Provincial Assembly opposed the construction of the wall. She said the wall would pose problems for balochists whose country is overcoming the border region. The Community would be more divided politically and socially and its commercial and social activities would be seriously hampered.  Opposition leader Kachkol Ali said that the governments of both countries had not trusted the Baloch in the case to immediately stop the construction of the wall and called on the international community to help the Baloch people.  In essence, pakistan-Iran relations are both complex and important. The attack on Pakistani soldiers in Balochistan and Pakistan`s attempts to build bridges with Iran must be seen in the context of recent events, including Khamenéi`s criticism of Article 370. While the physical border may no longer be able to facilitate the exchange of ideas and influences, officials on both sides may still be able to strengthen the important relations between the two countries that impose Asia and the Middle East. Nevertheless, the two countries continue, as far as possible, to cooperate economically and form alliances in a number of areas of common interest, such as the fight against drug trafficking along their borders and the fight against insurgency in the Balochistan region. Iran has also expressed interest in joining the China-Pakistan Economic Corridor (CPEC) as part of China`s largest Belt and Road initiative.   A few weeks later, in March, Pakistani traders called on the government to improve quarantine facilities and border screening instead of closing borders completely.
The modern border crosses the Balochistan region, a region long contested between the various empires of Persia (Iran), Afghanistan and Pakistan.  Beginning in the 18th century, the British gradually took control of most of India, including present-day Pakistan, and brought it closer to countries traditionally claimed by Persia. In 1871, the British (representing the Khan of Kalat and the subcontinent) and the Persians agreed to define their mutual border; A border commission examined the area the following year, but did not mark the border on the ground.  The British penetration of Balochistan under Sir Robert Groves Sandeman continued in the following decades, which led to a more precise border, which was to be agreed and marked 1895-96 with columns on the ground.  Some minor harmonization issues arising from this were resolved by another joint treaty in 1905.  The 91.4 cm thick and 3.05 m high concrete wall, secured with steel bars, will over-carbonize the 700 km border from Taftan to Mand.