"During the night attack on Bir-en-Temar on the 5th June 1942 the Commanding Officer led the Battalion to its objective which was captured. At daylight when all Companies were under intense machine gun fire and artillery shelling, Colonel Thorburn with a complete disregard for his personal safety visited his forward Companies.
He continued throughout the remainder of the day energetically getting mortars and Anti-Tank guns into action wherever they were required and spotting enemy action without a thought of taking cover, even though enemy tanks were firing in his direction from within five hundred yards.
Colonel Thorburn was wounded in the head whilst standing on a tank, acting as an O.P., but in spite of his wound continued to command for the remainder of the time, till he realised that nothing further would be gained by keeping his Battalion in this exposed position and he reluctantly gave the order to retire.
He directed operations up to the final withdrawal, and was one of the last men to leave the position. By his leadership, stamina and untiring energy he was an inspiration and example to all ranks."