21st February 1918
Eastern Front
Main Committee of German Reichstag adopts peace treaty with the Ukraine.
New peace terms for Russia formulated by Germany.
Germans within 60 miles of Reval.
Asiatic and Egyptian Theatres
Jericho taken.
British established on line of the Jordan to east and Auja to north, threatening Hejaz railway.
Ship Losses:
Břr (Norway) The cargo ship was sunk in the North Sea off Coquet Island, Northumberland, United Kingdom by SM UC-49 ( Kaiserliche Marine) with the loss of a crew member.
Cheviot Range (United Kingdom) The cargo ship was torpedoed, shelled and sunk in the English Channel 25 nautical miles (46 km) south of The Lizard, Cornwall by SM U-102 ( Kaiserliche Marine) with the loss of 27 crew.
Hugin (Sweden) The cargo ship was sunk in the Atlantic Ocean[129] 4.5 nautical miles (8.3 km) off St Agnes, Cornwall (50°28′N 5°12′W) by SM U-60 ( Kaiserliche Marine). Her crew survived.
Idalia (United Kingdo) The fishing ketch was scuttled in the English Channel 10 nautical miles (19 km) south east of Berry Head, Devon (50°27′N 3°14′W) by SM UB-33 ( Kaiserliche Marine). Her crew survived.
Irex (United Kingdom) The fishing smack was scuttled in the English Channel 10 nautical miles (19 km) east by south of Hope Cove, Devon (50°27′N 3°14′W) by SM UB-33 ( Kaiserliche Marine). Her crew survived.
Leonora (United Kingdom) The fishing ketch was shelled and sunk in the English Channel 11 nautical miles (20 km) east of Hope's Nose, Devon (50°27′N 3°14′W) by SM UB-33 ( Kaiserliche Marine). Her crew survived.
Mercia (Sweden) The cargo ship was sunk in the North Sea 85 nautical miles (157 km) east of Peterhead, Aberdeenshire, United Kingdom (57°43′N 2°28′E) by SM UB-86 ( Kaiserliche Marine). The crew of eighteen did not survive.
Oryx (United Kingdom) The fishing smack was shelled and sunk in the English Channel 10 nautical miles (19 km) south east by south of Berry Head, Devon (50°27′N 3°14′W) by SM UB-33 ( Kaiserliche Marine). Her crew survived.
Reaper (United Kingdom) The drifter struck a mine laid by UC 49 (Hans Kükenthal) and sank in the North Sea 2 nautical miles (3.7 km) north east of Tynemouth, Northumberland with the loss of eight of her crew.
Rio Verde (United Kingdom) The cargo ship was torpedoed and sunk in then Irish Sea 4 nautical miles (7.4 km) off Crammock Head, Wigtownshire by SM U-100 ( Kaiserliche Marine) with the loss of twenty of her crew.
Rosebud (United Kingdom) The fishing smack was scuttled in the English Channel 10 nautical miles (19 km) south south east of Hope Cove by SM UB-33 ( Kaiserliche Marine). Her crew survived.
SM U-23 (Austro-Hungarian Navy) The U-20-class submarine was sunk in the Strait of Otranto by the Italian destroyer Airone ( Regia Marina) with the loss of all eighteen crew.
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