On 15 May 1990 , the Provisional IRA exploded a 10 lb plastic explosive bomb in a flowerbed outside the Eltham Palace headquarters , injuring seven civilians . ( see 1990 Eltham bombing ) Aspirant National Service Sergeant Instructors underwent training at the Army School of Education , situated at the end of the Second World War at Buchanan Castle , Drymen in Scotland , and later , from 1948 , at the Walker Lines , Bodmin in Cornwall . Later the ASE moved to Wilton Park , Beaconsfield which had formerly been a POW camp for important or high-ranking prisoners
1990 Eltham bombing
1990 Eltham bombing
Royal Army Educational Corps