'Cormorant I' was a British operation by the Special Operations Executive to reinforce the leadership and increase the preparedness of the Milorg military resistance organisation’s D.14.3 district in Norway at the time of the German surrender (March/May 1945).

For this undertaking, B. Stenseth was delivered by parachute on the night of 3/4 March, and then undertook additional training of the resistance groups in the area.