The Frontier Works Organization ); abbreviated as FWO), is a military engineering organization, and one of the major science and technology commands of the Pakistan Army. Commissioned and established in 1966, the FWO includes active duty officers and civilian scientists and engineers. Since its establishment in 1966, it has been credited with the construction of bridges, roads, tunnels, airfields and dams in Pakistan, on the orders of the civilian government of Pakistan.

The Kartarpur Corridor is a visa-free border crossing and religious corridor, connecting the Gurdwara Darbar Sahib, near Narowal in Pakistan to Gurudwara Dera Baba Nanak, Gurdaspur district, Punjab, India. The crossing allows devotees from India to visit the gurdwara in Kartarpur, Pakistan, 4.7 kilometres from the India–Pakistan border on the Pakistani side without a visa. However, Pakistani Sikhs are unable to use the border crossing, and cannot access Dera Baba Nanak on the Indian side without first obtaining an Indian visa or unless they work there.