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.
More top news
Police have expressed concern for a missing 13-year-old girl who was last seen on Saturday.
Fat and unfit police officers who fail fitness tests must lose weight or "we haven't got a job for them", Sir Bernard Hogan-Howe has said.
Jeremy Hunt has accused staffing agencies of "ripping off the NHS" as he announced new measures to clampdown on