Western Front
Somme: Heavy rain. British occupy 8 villages (4 more on March 31) towards Cambrai.
French infantry and cavalry push German troops out of Château de Coucy and find the medieval castle demolished by German forces.

Southern Front
Salonika: Due to investigations into Black Hand and internment of 180 suspect officers at Bizerta (Tunisia), General Bojovic abolishes Serb Third Army and splits its formations between the other two armies.
Naval and Overseas Operations
British hospital ship Gloucester Castle torpedoed by UB-32 between Le Havre and Southampton, but towed in.

Asiatic and Egyptian Theaters
Mesopotamia: British Cavalry Division occupies Delli Abbas, Keary occupies Jebel Hamrin (March 31).
Palestine: War Cabinet telegram makes Jerusalem Murray’s objective.

Political, etc
Germany: At the German Reichstag, Arthur Zimmermann again admits that his telegram offering alliance with Mexico against the U.S. is genuine.
German Chancellor von Bethmann-Hollweg declares, “Germany never desired war against the USA and does not desire it today.”
Electoral Reform debate in Prussian Parliament.
Australia: People of Brisbane, Australia watching the movie “Why We Went to War,” shown during a recruitment campaign: pic.twitter.com/54fuzYMDlA

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