One of the most difficult aspects in the war being conducted in Pakistan is obtaining accurate, real-time intelligence, accessing the region, and ultimately attacking the threat. However, in the remote and mountainous regions of Waziristan and the Swat Valley in Pakistan, populated by factious tribes that may or may not be housing Al-Qaeda operatives, this has proven difficult. Over the past several years the US military has launched many missile attacks by the drone aircrafts, which have solved the problem of the access and the attack. The microchips, called "parthai" by locals, meaning "metal device" in Pashto, have solved the issue of intelligence. The chips are placed by local tribesmen, who are paid by the CIA and who have a more intimate knowledge of the community and targets.