The writer is a security analyst. AFGHANISTAN has recently witnessed a significant upsurge in security incidents. Indeed, experts have been projecting ‘increased violence’ as one of the most probable scenarios post-US troops’ withdrawal. Security strategists in Pakistan have been trying to prevent the impact of the increasing insecurity in this country’s neighbourhood, including through fencing the borders. Yet the Pakistani Taliban sheltered in Afghanistan have intensified their terrorist onslaught inside Pakistan, including in the bordering regions of Khyber Pakhtunkhwa and Balochistan. That indicates that fences can serve their purpose better if countries develop some joint border security and counterterrorism cooperation.