Western Front
Flanders: Big British trench raid in Houthulst Forest
British troops carrying statues and relics from the Church of Saint Vaast in Armentieres to save them from shelling: © IWM (Q 8544): https://twitter.com/CenturyAgoToday...186434787168256

Eastern Front
Ukraine: Ukraine Central Soviet accepts treaty concluded with Germany by the Rada.

Political, etc
Germany: Erich Ludendorff and Kaiser Wilhelm II first see the A7V German tank (crew on February 16) and captured British Mk IV tanks. The majority of the crew of the A7V rides on the tank during traveling without any combat conditions: https://i2.wp.com/ww2-weapons.com/w...7V-01.jpg?ssl=1
United Kingdom: War Cabinet agree aircraft priority for Western Front, but anti-aircraft guns first to home defence.
Japan: Japan proposes military action in Serbia.
Romania: German peace terms’ ultimatum sent to Romanian Govt at Jassy.

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