In 1940 Achnacarry Castle, the ancestral seat of Sir
Donald Walter Cameron of Lochiel, was brought into use as part of the new Training and Holding Wing for the Special Training Centre Lochailort. Due to the imminent closing of STC Lochailort and the realisation that a centralised training establishment was needed to train the potential commandos, Brigadier Charles Haydon established the Commando Depot in December 1941. Prior to this each individual Commando Unit was responsible for the training of Commando Personnel . By this time a drill square had been laid down and pasture within the vicinity of the house had been replaced by
asphalt.
Nissen huts now stood within the grounds around the drill square. These huts contained accommodation for men, housing between 25 and 40, dining halls, and washing rooms. Due to the secret nature of this training, the British Government prevented people from visiting much of Lochaber by preventing the crossing of non-residents over the
Caledonian Canal. In 1946 after the war had come to the end it was decided a significant Commando capability was not needed in peacetime and the CBTC at Achnacarry was disbanded. Between 1942 and 1946 over 25,000 personnel were trained at Achnacarry and it is widely believed that it was the birthplace of modern
special forces. The
Commando Memorial, a memorial to all Commandos of the Second World War, now stands overlooking the training grounds at Achnacarry on a point that all potential Commandos would have passed on the way to CBTC from the
Spean Bridge railway station. == Training ==