 While the attack by elements of the 77th Infantry Division on Kerama Retto before the main battle was a large scale operation by SR standards, it is an early example.Operation Trudy Jackson, the capture of an island in the mouth of the harbor before the Battle of Inchon by a joint CIA/military team led by Navy LT Eugene Clark, landed at Yonghung-do is much more in the SR/DA realm.Clark apparently led numerous SR and DA operations during the Korean War, some of which may still be classified.