The Government of Pakistan over Baluchistan, the country's largest province. Recently, separatists have also clashed with Islamic Republic of Iran over its respective Baloch region, which borders Pakistan. Shortly after Pakistan's creation in 1947, the Army of the Islamic Republic had to subdue insurgents based in Kalat who rejected the King of Kalat decision to accede to Pakistan, reminiscent of the Indian Army's operation in the Principality state of Hyderabad. The movement gained momentum during the 1960s, and amid consistent political disorder, the government ordered a military operation into the region in 1973, assisted by Iran, and inflicted heavy casualties on the separatists. The movement was largely quelled after the imposition of martial law in 1977, after which Baluchistan witnessed significant development. After insurgency groups again mushroomed in the 1990s and 2000s, the 2001 invasion of Afghanistan and the war in North-West Pakistan exacerbated the conflict, most recently manifested in the killings of non-Baloch settlers in the province by separatists since 2006.
Background:-
1. First conflict 1948 (led by Prince Abdul Karim Khan)
In April 1948, Baloch nationalists claim that the central government sent the Pakistan army, which allegedly forced Mir Ahmed Yar Khan to give up his state, Kalat. Kalat was a landlocked British protectorate that comprised roughly 22%–23% of Baluchistan. Mir Ahmed Yar Khan signed an accession agreement ending Kalat's de facto independence. His brother, Prince Abdul Karim Khan, was a powerful governor of a section of Kalat, a position that he was removed from after accession. He decided to initiate an insurgency against Pakistan. On the night of May 16, 1948 Prince Abdul Karim Khan initiated a separatist movement against the Pakistani government. He conducted guerrilla warfare based in Afghanistan against the Pakistan army.
2. Second conflict 1958–59 (led by Nawab Nowroz Khan)