You can read part 3 Here

October 1971

Government forces and a permanent presence on the Jebel was unheard of. Scant water sources and lack of air transport had restricted the Sultan’s Armed Forces’ (SAF) patrols to the number of rations the men could carry. In a humid, mountainous terrain with simmering temperatures that wasn’t much. The introduction of the helicopter, however, changed everything. Piloted by British pilots, the choppers, as in Vietnam, revolutionized operations. Now patrols could be resupplied to their hearts’ content.

It was, thus, decided that after the monsoon season ended in late September, an operation would be launched on the Eastern Jebel.