In March 1921, the Kronstadt rebellion by sailors was put down by the Red Army. The Gulf of Finland had several major naval operations during World War II. In August 1941, during the evacuation of the Baltic Fleet from Tallinn to Kronstadt, German forces sank 15 Russian military vessels, (5 destroyers, 2 submarines, 3 guard ships, 2 minesweepers, 2 gunboats and 1 Motor Torpedo Boat) as well as 43 transport and support ships. Several ships still remain on the gulf bottom near Cape Juminda, and a monument was raised there in memory of those lost in the events.