 He also worked for MI9 in Istanbul aiding resistance fighters in Nazi-occupied countries.In early 1943 McLean was selected by SOE to lead a mission in occupied Albania, for which he was promoted to Major.His team was parachuted behind enemy lines in April 1943, where they made contact with the partisan National Liberation Movement (LANÇ) and the nationalist, anti-Communist, anti-Zog movement, the Balli Kombëtar.