A major task that fell to the RAOC in the wake of the war was disposal of ammunition. As well as disposing of large amounts of surplus stock from depots at home, and returning in good order sites that had been requisitioned for the duration of the war, RAOC units were heavily involved in clearing ammunition from Germany's former depots and dealing with live devices still in the field. The RAOC's skills in bomb disposal were later put to increasing use in dealing with terrorist devices at home as well as in conflict zones overseas. The training of Ammunition Examiners, Ammunition Technicians and Ammunition Technical Officers at the Army School of Ammunition became progressively more specialised during the 1950s and '60s. In May 1970 a section of 321 EOD Unit was sent to Northern Ireland to support the local ammunition inspectorate in dealing with improvised explosive devices; what was initially a 6-month deployment marked the start of a much longer involvement through the Troubles.