edwin ` jock ' mee , 45 , allegedly targeted 11 cadets aged between 15 and 25 .
he was british army recruiting sergeant at mitcham barracks in croydon .
court heard he isolated alleged victims from overseas and abused them .
were allegedly threatened with deportation if they did not submit to him .
one woman , a virgin in her 20s , fell pregnant after rape in waiting room .
divorcee mee denies 17 counts of sexual assault and three counts of rape .