The Ministry of Defence wastes up to £94 million a year training 16 and 17-year-old army recruits for roles which could be filled by adults, campaign groups have said.
According to a report by Child Soldiers International and ForcesWatch, it costs as much to train a 16-year-old as an 18-year-old.
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The country says it is making the move to shift its national focus and improve its economy.
A stage adaptation the Strictly Ballroom, the film credited with reviving ballroom dancing, has opened in the West End.
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