The Pakistan-Afghanistan border is erupting in violence, with deadly clashes marking a dangerous new chapter in the region's volatile history. As casualties mount on both sides, Pakistan accuses the Afghan Taliban of sheltering TTP militants, leading to a severe breakdown in relations. Is this the start of a long, drawn-out war? In this critical analysis, we are joined by Kamran Bokhari, a Senior Director at the New Lines Institute in Washington D.C., to dissect the rapidly deteriorating situation. We explore the deep-rooted causes of the conflict, which Kamran describes as the result of a "massive miscalculation" in Pakistan's half-century-long Afghanistan policy.