Buy more reapers - from the Grauniad:-
The technology
The US-manufactured General Atomics Reaper is currently the RAF's only armed unmanned aircraft. It can carry up to four Hellfire missiles, two 230kg (500lb) bombs, and 12 Paveway II guided bombs. It can fly for more than 18 hours, has a range of 3,600 miles, and can operate at up to 15,000 metres (50,000ft).
The Reaper is operated by RAF personnel based at Creech in Nevada. It is controlled via a satellite datalink. Earlier this year, David Cameron promised to increase the number of RAF Reapers in Afghanistan from four to nine, at an estimated cost of £135m.
The MoD is also funding the development by BAE Systems of a long-range unmanned aircraft, called Taranis, designed to fly at "jet speeds" between continents while controlled from anywhere in the world using satellite communications.