Palestine – Action of Abu Tulul: 5800 Turks and Germans (1,000 casualties including 475 Germans and 540 PoWs, 6 MGs lost) attack 2,500 Anzacs and Indian cavalry (c.200 lancers cause 192 Turk cavalry casualties east of Jordan), unsupported Germans repelled for 70 ALH (Australian Light Horse mounted infantry) casualties (189 total).
Marne: 27 German PoWs (chiefly Alsatian) reveal to French Fourth Army timings of impending Champagne-Marne offensive.
Champagne and Marne: Germans gas shell US 3rd Division with 7,500 rounds (15t) mustard gas and phosgene; 600 gassed (9 deaths); US 26th Division at Chateau-Thierry endures 10,000 rounds (20t) mustard gas and phosgene (until July 17); 518 gassed (no deaths).
Trentino: Field Marshal Conrad resigns from active service (especially due to Hungarian protests at Piave failure), is made Count and Colonel of all the Guards; General Krobatin (Tenth Army) takes over his Tyrol army group.
Mediterranean: Coastal submarine UB-105 sinks French transport Djemnah (442 lost) off Cyrenaica. British Australia-bound SS Barunga (ex-German SS Sumatra) sunk by U-boat.
Western Front: 9 RAF squadrons fly to reinforce French in Champagne despite rainstorms, lose 15 aircraft in action (until July 17).
Britain: National rationing for sugar (until November 29, 1920), butter (until May 30, 1920), margarine (until February 16, 1919) and lard (until December 16, 1918), national bacon and ham rationing discontinued on July 29. Local jam, cheese and tea rationing for 500,000 to 17.5 million people since early 1918.