It might conjure up the image of Private Godfrey in ‘Dad’s Army’, but the Ministry of Defence’s announcement that the age at which retired troops can be called up will increase to 65 also makes perfect sense, says defence expert Francis Tusa. In many ways, an older cohort might be even more effective T he Ministry of Defence has announced that it is increasing by 10 years the age limit for calling personnel back to serve in the forces in the event of a crisis . It had been 55, but will now be