A Vorpostenboot (plural Vorpostenboote) was an auxiliary warship used by Germany in both World Wars. Many vorpostenboote also served in other roles, such as sperrbrechers and weather ships. During World War II, the Vorposentenboote were organized into several surface flotillas which were in turn attached to various German ports.
1 Vorpostenflotille was active in the western Baltic from 1 October 1939 to 1 October 1940, when it was redesignated 3 Sperrbrecherflotille.
† Losses:- V 105 Cremon struck a mine and sank in the Norwegian Sea off Bergen, Norway on 11 April 1940.
2 Vorpostenflotille existed from September 1939 to December 1944, when it was disbanded. Many vessels were redesignated within the unit, later designations are shown in brackets
† Losses:- V 201 Gebrüder Kähler struck a mine and sank in the Westerschelde on 5 September 1940.V 202 Hermann Bösch was shelled and sunk in the English Channel off La Hague, Manche, France by HMS Calpe, HMS Cottesmore and two Royal Navy Motor Gun Boats.V 205 Franz Westermann was sunk in an Allied air raid on St. Peter Port, Guernsey, Channel Islands on 15 June 1944.V 206 Otto Bröhan was scuttled at Caen, Calvados, France on 12 June 1944.V 207 Heinrich Buermann was sunk in an Allied air raid on Le Havre, Seine-Maritime, France on 14 June 1944.V 208 R. Walter Darré was sunk in the English Channel off the coast of Normandy, France in a battle with HMCMTB 748 HMCMTB 735, HMCMTB 743 and HMCMTB 734 on 4 July 1944.V 209 Gauleiter Telchow was torpedoed and sunk in the North Sea off Heligoland by HMS Sturgeon on 20 November 1939.V 209 Dr. Rudolf Wahrendorff was sunk by Allied aircraft at St. Peter Port on 24 July 1944. V 210 Hinrich Hey was sunk in the English Channel off the coast of Normandy, France in a battle with HMCMTB 748 HMCMTB 735, HMCMTB 743 and HMCMTB 734 on 4 July 1944.V 211 Seydlitz was sunk in the English Channel off Barfleur, Manche by British aircraft on 20 March 1944.V 212 Friedrich Busse was scuttled at Caen on 12 June 1944.V 213 Claus Bolten on 28 June 1944.V 214 Baden was sunk in the English Channel off Fécamp, Seine-Maritime, France by HMGB Grey Owl and HMGB Grey Shark on 9 August 1944.V 215 Oliva was scuttled at Saint-Malo, Ille-et-Villaine on 6 August 1944.V 215 was sunk in the Baltic Sea off Hela, Danzig-West Prussia by Soviet aircraft on 16 April 1945.V 216 Goeland on 6 August 1944.V 222, V 223, V 224, V 225, V 226 and V 227 were scuttled at Brest, Finistère, France on 18 August 1944.