R.O.C Cold War
From Aircraft Observation to Nuclear Monitoring
In 1947 & 1948, the ROC held aircraft reporting exercises, which included for the first time substantial numbers of jet aircraft. However the role of the Corps was diminishing as the speed of aircraft became greater until this role was replaced by the need for nuclear warning and monitoring.
Initial Corps' Structure during the early Cold War period.
The Groups were re-organised with the numbers being reduced from 40 to 31, and with the Corps now covering Northern Ireland for the first time.
The Nuclear Threat
The use of atomic weapons on Japan in 1945 showed the destructive capability of these new weapons including the added impact of deadly radioactive fallout to the exposed civilian population.