"that were landed in the Kurram Agency’s unpopulated areas Kharlachi and Borki."
interesting that unpopulated areas have names...
from a google search, it is next to Pakistan border with Afghanistan:
"at Kharlachi village, one kilometre from Afghanistan"
"The fighting occurred near Kharlachi Fort in the tribal Kurram Agency of North-West Frontier Province and directly opposite Afghanistan's Paktia province, where US-led forces are waging the largest ground offensive of the Afghan war."