Western Front
Kaiserschlacht: British eject Germans from front trench north-west of Albert.
Great activity of British bombing-machines on whole front.
French improve positions north of Kemmel village.
Argyll and Sutherland Highlanders defending a position at the Lys Canal near Saint-Floris: © IWM (Q 6613):
https://twitter.com/CenturyAgoToday...255705808031744
Occupied Belgium: 7 Handley Page bombers (1 lost) bomb Ostend in support of Royal Navy raid.
North Sea: Zeppelin L-62 blows up after attack by British flying boat.
Argonne: 1,000 German projectors fire 8t phosgene on French positions; 187 gassed (20 deaths).
Meuse: German gas attack (500 projectors) on US 26th Division in St Mihiel-Toul sector.
Lorraine: German gas attack (1,000 projectors) on French north of Parroy.
Naval and Overseas Operations
A German 17 cm Schnell-Ladekanone (fast loading gun) L/40, as it was used to defend Ostend:
https://i0.wp.com/ww2-weapons.com/w...e-l40.jpg?ssl=1
Eastern Atlantic: 6 U-boats attempt to attack convoys (until May 25), only 2 succeed, 30 convoys pass through group’s area.
Britain: Eric Geddes proposes to Italian Ambassador Imperial an Allied Mediterranean ‘admiralissimo’, eg John Jellicoe, to settle command differences as on land, Lloyd George cables Clemenceau (May 13), Anglo-French agreement (May 17) but scheme founders at Supreme War Council (June 2) due to prolonged Italian objections.
Asiatic and Egyptian Theaters
Mesopotamia: 6th Indian Cavalry Brigade, armored cars and 24 Ford vans drive Turkish 2nd Division north of river Little Zab 70 miles from Mosul.