The Aflaj Irrigation Systems of Oman are ancient water channels from 500 AD located in the regions of Dakhiliyah, Sharqiyah and Batinah.

Furthermore, these documents reveal that the British Foreign Secretary gave the approval on 4 August 1957 to carry out air strikes without prior warning to the locals residing in the interior of Oman.

The ban on visas for the press by the sultan and the ability of the British government to carry out air strikes discreetly using Masirah Airfield helped in sustaining the military operations under low profile.

A distinct feature is the ring of burnt clay at the shaft mouth, which prevents tunnel collapse and flooding, safeguards the water from pollution, and stops people and animals from falling in.

Despite their ancient origins, about 3,000 aflaj systems remain functional, underlining their enduring value to Oman's agricultural and domestic water supply.