Bangura was born on 8 March 1930 at
Kalangba,
Karene Chiefdom, Bombali District,
British Sierra Leone. He was educated at Binkolo and Rogbaneh American Wesleyan Mission Schools, and Koyeima and Bo Government Secondary Schools. He left school in 1949 and joined the army in 1950. While in the other ranks he served and attended courses in both Ghana and Nigeria. In one such course, the Platoon Commanders' course in Burma Camp, Teshie, Ghana, he graduated first in a group of sixteen warrant officers and senior non-commissioned officers. The impressive qualities of leadership manifested in his keen sense of duty, intelligence, and fitness allowed him to face the Special Selection Board at which the late General Sir
Lashmer Whistler, C.M.G., D.S.O., O.B.E., M.C., then colonel-in-chief of the
Royal West African Frontier Force, was chairman. His performance at Teshie Camp necessitated his transfer to Eaton Hall,
Mons Officer Cadet School,
Aldershot, in 1952. At Mons, he was recommended by the
British Army for more rigorous training at the
Royal Military Academy Sandhurst. On graduation from Sandhurst in August 1954, he was commissioned as a second lieutenant. After a successful Young Officers' Course at Hythe and Warminster, Bangura was posted on secondment to the
British Army on the Rhine in
West Germany. While on secondment, he was promoted to the rank of
lieutenant. Bangura returned to Sierra Leone in 1955 and was appointed commander of a Rifle Company's
Platoon in the First Battalion, the
Royal Sierra Leone Regiment. In 1958, he was promoted to the rank of
captain. In 1962, he served with the First Sierra Leone Contingent on the Congo Operations of the
United Nations Organization. On his return home that year he was promoted to the rank of
major. In 1964, Bangura became commanding officer of the First Battalion the
Royal Sierra Leone Regiment, attaining the rank of
lieutenant-colonel. These promotions were preceded or followed by several successful courses in various military training centers in the United Kingdom. One such course was the All Arms Division Course for substantive
Majors in the British Army. In 1966, Bangura was posted to attend the
Joint Services Staff College (UK) (J.S.S.C.) in Latimer,
Buckinghamshire, and became a fellow of the college. In the same year, he was promoted to the rank of full colonel. After a period of successful military career, he was arrested and detained at Pademba Road Prisons prior to the March 1967 general elections by David Lansana under orders from Sir
Albert Margai. He was, however, released in March that year by
Brigadier Andrew Juxon-Smith and appointed counsellor and head of the chancery at the Sierra Leonean Embassy in Washington D.C. While in the US, he was given orders by
John Karefa-Smart to go to Guinea with Siaka Stevens to train in guerrilla techniques. He mysteriously disappeared from his post to become chairman of the National Interim Council (NIC) which brought back civilian rule after a successful takeover of power from the military junta, the National Reformation Council (NRC) in 1968. He became commander of the First Battalion of the Royal Sierra Leone Regiment, and of the
Royal Sierra Leone Military Forces after this operation. On 1 May 1969, he was promoted to the rank of brigadier and honoured in the
1970 New Year Honours with the C.B.E. (Commander of the Order of the British Empire) (Military Division). Brigadier John Amadu Bangura's thorough military training and great experience made him what he was a rare soldier. He was married and had eight children. == Sergeants' Coup ==