In September 1938, a reinforced platoon led by Lt. Walter Schug embarked on the German battleship Deutschland headed for Spain, where it blew up a Republican radio station on the island of Ibiza.
Wilhelm Henningsen the MSK trained for future missions.
In the early hours of 1 September 1939, MSK disembarked Schleswig-Holstein in order to attack the Polish military transit depot Westerplatte in Danzig harbour.
After the fall of the fortress, MSK was used in the occupation of Gdynia and in the battle of Hel peninsula.
MSK remained active for the rest of World War II, mainly on the Eastern Front.