Defence Secretary Philip Hammond has said the Army Reserves "will be critical to mounting military operations" as he launches of a new recruitment drive to boost the Armed Forces.
The campaign, dubbed "More than meets the eye", aims to show how the new Army Reserve is fully integrated with its regular counterpart.
Mr Hammond said: "We are restructuring the army to ensure regular and reserve soldiers are fully integrated into one force, training and working alongside each other.
"In 2014, the army will continue to recruit new full-time soldiers and look to increase the trained strength of part-time soldiers.
"Army Reserves will be critical to mounting military operations in the future and we intend to grow the number significantly by 2018."
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