After the Norwegian Campaign, the independent companies were disbanded but many individuals involved moved to the newly formed British Commandos. Stockwell was selected to head the commando training centre at Lochailort. In 1942, he returned to the Royal Welch to command the 2nd battalion, part of 29th Independent Infantry Brigade Group which was training in amphibious operations to take part in Operation "Ironclad", the seizure of the natural port of Diego Suarez in Madagascar which was occupied by the Vichy French. The brigade left Scotland in late March 1942 and after a brief pause in South Africa, sailed for Madagascar to land unopposed on 5 May. After a day's fighting the British force achieved its objectives. The brigade group took part in further fighting in September when it was decided to take control of the whole of the island and establish Free French control.