The Ministry of Defence has confirmed £1 billion plans to massively expand Catterick Garrison.
Army officials plan to increase troop numbers at the base - already the largest in Europe - by several thousand.
When the expansion is complete Catterick will be home a full Mechanised Brigade and full logistical back-up.
Officials have also held out the hope that RAF Leeming could have a future.
The air base has been under threat after losing its Tornado squadrons and not being selected for future combat aircraft operations.
But top brass said today they were confident the base would remain part of the MoD - although they refused to be drawn on rumours the site may be used by the Army.
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