KABUL - Aided by American advisers, the Afghan army on Monday launched its first unmanned surveillance drones from a base in Helmand province to try to expand its ability to provide its own air support.

Afghan forces are struggling to build up an independent air force as Taliban insurgents step up offensives across the country. Government troops remain heavily reliant on international aircraft to supply surveillance, intelligence, and occasionally air strikes. The first unarmed ScanEagle unmanned aircraft are based in Helmand, which has seen heavy fighting, as well as a training base in Mazar-i-Sharif in northern Afghanistan.

The army will receive eight “systems” from Washington, each including six aircraft, that are planned to be eventually used in all of the most contested areas in the country.

“Before this technology, they relied on human and signals intelligence,” Maj. Jason White, a U.S. Army adviser, said in a statement. “The ScanEagle systems considerably increase their intelligence collection and reconnaissance ability.”

The rudimentary drone network will remain totally reliant on foreign operators for years to come, however.

While Afghan commanders will oversee the flights, aircraft operations will be dependent on international contractors until at least 2018. Afghan soldiers are undergoing training in both the United States as well as at bases at home.

The ScanEagle is an unarmed surveillance aircraft that costs about $100,000 apiece, with a stabilised turret to carry high-definition and infrared cameras with live video feeds, says its maker Insitu, owned by aviation giant Boeing.

ScanEagles use a pneumatic launcher to take off, and are recovered by a system of cables, letting them operate without an airfield. With a wingspan of about 3 m (10 ft), they can stay aloft up to 24 hours, at an altitude of 4,600 m (15,000 ft). Moreover, Tired of what they see as a reduced commitment to old U.S. allies, riled by comments Obama made about them in a magazine interview last month and aware there will be a new president in January, Riyadh and its neighbours may not be ready to just take his word for it. “We want to receive tangible reassurances from them,” said a senior Gulf official briefed on preparations for the meeting.

Short of a formal defence treaty, an idea rejected before a previous summit, Riyadh and its allies hope to come away from their meeting with new missile defence systems. Obama wants to find a way for Gulf states and Iran to arrive at a “cold peace” that douses sectarian tensions around the region and curbs the spread of Islamist militancy.