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Battle of the Gulf of Riga

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Battle of the Gulf of Riga
Part of World War I

Scheme of defence of gulfs of Finland and Riga by the Russian Navy.
Date8-19 August 1915
Location
Gulf of Riga, Baltic Sea
Result Allied victory, Germans withdraw.
Belligerents
 German Empire  Russian Empire
 United Kingdom
Commanders and leaders
German Empire Ehrhard Schmidt Russian Empire Vasily Kanin

The Battle of the Gulf of Riga was a World War I naval operation of the German High Seas Fleet against the Russian Baltic Fleet in the Gulf of Riga in the Baltic Sea in August 1915. The operation's objective was to destroy the Russian naval forces in the Gulf and facilitate the fall of Riga to the German army in the later stages of the Central Powers' offensive on the Eastern Front in 1915. The German fleet, however, failed to achieve its objective and was forced to return to its bases; Riga remained in Russian hands until eventually falling to the Germans on 1 September 1917.

Prelude

In early August 1915, several powerful units of the German High Seas Fleet were transferred to the Baltic to participate in the foray into the Riga Gulf. The intention was to destroy the Russian naval forces in the area, including the pre-dreadnought battleship Slava, and to use the minelayer Deutschland to block the entrance to the Moon Sound with mines. The German naval forces, under the command of Vice Admiral Hipper, included the four Nassau-class and four Helgoland-class battleships, the battlecruisers SMS Moltke, Von der Tann, and Seydlitz, and a number of smaller craft.[1]

Battle

On 8 August, the first attempt to clear the gulf was made; the old battleships SMS Braunschweig and Elsass kept Slava at bay while minesweepers cleared a path through the inner belt of mines. During this period, the rest of the German fleet remained in the Baltic and provided protection against other units of the Russian fleet. However, the approach of nightfall meant that Deutschland would be unable to mine the entrance to Moon Sound in time, and so the operation was broken off.[2]

In the meantime, the German armored cruisers SMS Roon and Prinz Heinrich were detached to shell the Russian positions at Zerel, on Ösel Island. Several Russian destroyers were anchored at Zerel, and one was slightly damaged during the bombardment. The battlecruiser Von der Tann and the light cruiser SMS Kolberg were sent to shell the island of Utö.[3]

On 16 August, a second attempt was made to enter the gulf. The dreadnoughts SMS Nassau and Posen, four light cruisers, and 31 torpedo boats breached the defenses to the gulf.[3] On the first day of the assault, the German minesweeper T 46 was sunk, as was the destroyer V 99. On 17 August, Nassau and Posen engaged in an artillery duel with Slava, resulting in three hits on the Russian ship that prompted her withdrawal. After three days, the Russian minefields had been cleared, and the flotilla entered the gulf on 19 August, but reports of Allied submarines in the area prompted a German withdrawal from the gulf the following day.[4]

Throughout the operation, the German battlecruisers remained in the Baltic and provided cover for the assault into the Gulf of Riga. On the morning of the 19th, Moltke was torpedoed by the British E-class submarine HMS E1; the torpedo was not spotted until it was approximately 200 yd (180 m) away. Without time to manoeuver, the ship was struck in the bow torpedo room. The explosion damaged several torpedoes in the ship, but they did not detonate themselves. Eight men were killed, and 435 t (480 short tons) of water entered the ship. The ship was repaired at Blohm & Voss in Hamburg, between 23 August and 20 September.[5]

Order of battle

Russia

  • Battleship: Slava
  • Gunboats: Grozyashchiy, Khrabry, Sivuch, Koreets
  • Minelayer: Amur
  • Flotilla of 16 destroyers

Germany

Notes

  1. ^ Halpern, p. 196
  2. ^ Halpern 1995, pp. 196–197
  3. ^ a b Halpern 1995, p. 197
  4. ^ Halpern 1995, pp. 197–198
  5. ^ Staff 2006, p. 15

References

  • Halpern, Paul G. (1995). A Naval History of World War I. Annapolis: Naval Institute Press. ISBN 1-55750-352-4.
  • Staff, Gary (2006). German Battlecruisers: 1914-1918. Oxford: Osprey Books. ISBN 978-1-84603-009-3.

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