23rd April 1918
Western Front
Violent artillery fire from Avre river to Albert, followed by heavy infantry attacks at Albert and in region between Somme and Avre.
Special despatch from Sir Douglas Haig mentions 14 divisions: 102 German divisions employed against British alone during great offensive.
Eastern Front
Finland: Finnish Western White Army reported to have reached Russian frontier.
Bolshevik Government against protests against union of Bessarabia and Romania.
Asiatic and Egyptian Theatres
Palestine: War Office reports progress in Hejaz.
Bayazid (Armenia) occupied by Turks.
Aviation
Paris raided by one aeroplane, which is brought down.
Paul Frank Baer becomes the first American serving in the U.S. military to become a flying ace.
Naval and Overseas Operations
British Royal Navy conducts a large raid against the German-held ports of Zeebrugge and Ostend but fail to cause significant damage. British suffer 583 casualties, while Germans suffer 24.
Durazzo (Albania) bombed by Naval aircraft:- only one warship seen in harbour.
Political, etc.
Ireland launches a general strike to protest the British government’s decision to extend military conscription to the Irish.
Newfoundland: Conscription Bill introduced.
Japan: Viscount Motono succeeded by Baron Goto as Foreign Minister.
Major-General Bridges, Military Adviser to Lord Reading in U.S.A.
Guatemala declares war on Germany.
Ship Losses:
HMS Brilliant (Royal Navy) The Apollo-class cruiser was scuttled as a blockship at Ostend, West Flanders, Belgium.
HMS C3 (Royal Navy) Packed with explosives, the C-class submarine was rammed into the a viaduct connecting the mole to the shore at Zeebrugge, West Flanders, Belgium, and detonated in order to destroy the viaduct.
Frances (United Kingdom) The ketch was scuttled in the Atlantic Ocean (46°33′N 12°05′W) by
SM U-155 ( Kaiserliche Marine) with the loss of two of her crew.
HMS Intrepid (Royal Navy) The destroyer was scuttled at Zeebrugge in an attempt to block the entrance to the Bruges Canal.
HMS Iphigenia (Royal Navy) The destroyer was scuttled at Zeebrugge in an attempt to block the entrance to the Bruges Canal.
Laurium (United Kingdom) The coaster struck a mine laid by
UC 64 (Ferdinand Schwartz) and sank in the North Sea off the Inner Dowsing Lightship ( United Kingdom) with the loss of a crew member.
HMML 110 (Royal Navy) The motor launch was lost on this date.
HMML 424 (Royal Navy) The motor launch was lost on this date.
HMS North Star (Royal Navy) The Admiralty M-class destroyer was shelled and sunk at Zeebrugge by German shore-based artillery.
Peregrine (United Kingdom) The trawler was shelled and sunk in Yell Sound by
SM U-19 ( Kaiserliche Marine). Her crew survived.
HMT Plethos (Royal Navy) The naval trawler struck a mine laid by
U 80 (Karl Koopmann) and sank in the North Sea 40 nautical miles (74 km) east north east of Montrose, Forfarshire with the loss of four of her crew.
Restaurado (Portugal) The sailing vessel was sunk in the Atlantic Ocean off the coast of Portugal by
SM UB-105 ( Kaiserliche Marine).
HMS Sirius (Royal Navy) The Apollo-class cruiser was scuttled as a blockship at Ostend.
HMS Thetis (Royal Navy) The Apollo-class cruiser was scuttled at Zeebrugge in an attempt to block the entrance to the Bruges Canal.
Tyne Wave (United Kingdom) The trawler was shelled and sunk in the North Sea 16 nautical miles (30 km) north east of Ronas Voe, Shetland Islands by
SM U-19 ( Kaiserliche Marine). Her crew survived.