THE nation's defence chief has endorsed plans to recruit older Australians into the military. But Defence head Air Chief Marshal Angus Houston today said there would be no over-55 infantrymen in frontline units. The proposal to raise the recruitment age is among a range of measures flagged today by Defence Minister Brendan Nelson as the Australian Defence Force struggles to attract and retain personnel. Air Chief Marshal Houston tody said the Royal Australian Air Force (RAAF) employed many over-55s in specialist areas and the reserve case by case. The time was right to consider lifting the retirement age of 55...