The news isn't true but Wakhan isn't the only place that Pakistan can take and make the border more defensible at the same time.
Eastern Bank of chitral river for example.
Pros. More natural border, puts Pakistan a stone throw away from Jalalabad and bases there. Makes sure water right of peshawar valley are never in jeopardy with a large dam in Kunar. Acts as a buffer for Bajaur, Upper and Lower dir.
Cons: Not major towns but still moderately populated.
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Exactly bro! Similarly, in a worst case hypothetical scenario, we could go all the way to the Helmand River and its tributaries, such as the Dori and Arghistan rivers, if we want to really create a natural defensive barrier in the Balochistan sector as a whole. Brutal fighting and ambushes would occur during the initial massive assault, but we would surely overwhelm them in a head-on mechanized combined arms assault.
Largely flat plains of the Sistan Desert (Registan), with very little population except near the eastern banks of these rivers, and a natural barrier that can be far more efficient for border security compared with the current border in Balochistan, where we have seen many infiltration attempts from the northern and central tips (the Sambaza incident near Zhob is a prime example).
Our ISR assets, command posts, and massive watchtowers can effectively monitor movement across these open expanses vs. a rugged mountainous terrain border.
But the real issue would surely be the funding, surveillance, and control over vast swaths of land, around 50,000 to 60,000 sq. km., and there would almost certainly be huge international, local, and Iranian backlash (the Helmand River flows into Iran, Iran's key water source).
