Army commanders say a new contract to service attack helicopters based at Wattisham in Suffolk will save the tax payer millions of pounds.
The Ministry of Defence has signed a six year deal which its says will simplify the supply chain and improve technical support for the Apache fleet.
Troops could end up being housed at the former RAF base at Cottesmore in Rutland. The Ministry of Defence is expected to announce more details about where soldiers based in Germany will move to.
British forces have been there since World War Two. 17,000 will remain, but half are expected home by 2015.