When Germany attacked Norway in April 1940, Lt. Cdr. Horve was the commander of HNoMS
Draug. During the night of 9 April,
Draug was patrolling and watching shipping in the Karmsund. At about 0200hrs, Horve was notified that Oslofjord Fortress was engaging an unknown enemy force in the Oslofjord, leading to the crew being ordered to full combat stations. At 0400hrs, an unknown ship, flying no national flag, was observed sailing northwards through the Karmsund. The ship refused to stop after both flares and warning shots had been fired and
Draug had to give chase and capture the vessel. After leading the unknown ship into
Haugesund, its identity was found to be the 7,624 ton German vessel
Main. The two ships left Haugesund at about 0900hrs, but soon came under attack from a Luftwaffe bomber around 40 nautical miles (74 km) off the Norwegian coast. The bombs, aimed at the
Main, missed but the German captain immediately scuttled his vessel and ordered his crew to abandon ship.
Horve remained commander of
Draug until 3 November 1941. He was also commander of HNoMS
Sleipner from 28 June 1940 to December 1941. He subsequently had command of
Glaisdale. He worked in the Royal Norwegian Navy High Command in London from 1941 to 1942, headed the Norwegian MTB Flotilla in Shetland from 1943 to 1944, and worked again at the Navy High Command from 1944 to 1945 and the Navy Special Service (
Marinens Spesialtjeneste) in 1945.
