Western Front
Second Battle of the Marne: General German retreat north of Marne; cavalry and tanks pursue, but the Germans have railway alternative to Soissons and still hold city. Allied troops reach line Bruyeres-Chaumuzy. (Bruyeres three miles west of Fere-en-Tardenois). Chaumuzy on River Ardre, south-west of Reims).
Indian lancers of the British Army on the Western Front: https://i0.wp.com/ww2-weapons.com/w...front.jpg?ssl=1
RAF forms a Communications Squadron at Hendon to operate in the VIP transport role.
French troops wounded and blinded by poison gas being led back from the front: © IWM (Q 6864): https://twitter.com/CenturyAgoToday...508138745016320
A French plane brought down behind German lines: https://twitter.com/CenturyAgoToday...777381382221825
American soldiers playing a game of craps at Winchester: © IWM (Q 70731): https://twitter.com/CenturyAgoToday...807581205651456
American and British officers resting at an officers’ club at Winchester: © IWM (Q 72742): https://twitter.com/CenturyAgoToday...837781549260800

Asiatic and Egyptian Theaters
Palestine: c.150 Sikhs mount a trench raid 3 miles from sea.
Mesopotamia: Royal Navy parties from gunboats Moth and Mantis leave Baghdad with 3 guns for Caspian (Commander Norris follows on July 28).

Naval and Overseas Operations
North Sea: Armed yacht Vanessa depth charges and sinks coastal submarine UB-107 off Scarborough.

Political, etc
United Kingdom: Mr. Montagu, Secretary of State for India, on Indian Constitutional Reform.
Australia: Launching ceremony for the Australian light cruiser HMAS Adelaide: https://twitter.com/CenturyAgoToday...747180384362496

__________________
On the kinkometer, my kink measures as a sine wave.