The answer is surely UAVs - bought off the USA shelf. Oops though, no dosh to British Waste of Space, Marshalls of Wastebridge or cream to the Treasury.
P.S. Are we all aware that the UAVs that have been acquired were moved directly in to the operational theatre (i.e. not via mainland UK) purely to avoid being ripped off by the taxman - i.e. the Brown moron! (VAT/ and duty would have been charged if they had been landed here.)