The attacks and Islamabad’s failure to deter them angered China, which pushed Pakistan to begin formal negotiations for a joint security management system.

Reporters spoke to five Pakistani government and security sources with direct knowledge of the previously unreported negotiations and demands, on condition of anonymity because the discussions are sensitive, and reviewed a written proposal sent by Beijing to Islamabad.

“They (the Chinese) want to bring their own security,” said an official, who attended a recent meeting, adding that Pakistan has so far not agreed to such a step.

A written proposal sent to Islamabad by Beijing and forwarded to Pakistani security agencies for review included a clause allowing security agencies and military forces to be sent to each other’s territory to assist in counter-terrorism missions and conduct joint strikes.