21st April 1918
Western Front
Position at Seicheprey restored.
Local fighting round Albert, Villers Brettonneux and Robecq.
Aviation
Great aerial activity and much bombing on whole front.
Result of 29 days' bombardment of Paris: 118 killed, 236 injured.
Manfred von Richthofen, known as the “Red Baron” with 80 aerial victories, is killed in action over Morlancourt Ridge near the Somme River.
Political, etc.
Australian Roman Catholic Bishops protest against Government action in Ireland.
New constitution of Versailles Council announced.
Ship Losses:
Bellview (United Kingdom) The collier was torpedoed and sunk in the Mediterranean Sea 16 nautical miles (30 km) east north east of Cape Bon, Tunisia (37°13′N 11°21′E) by
SM U-32 ( Kaiserliche Marine). Her crew survived.
Delta A (Belgium) The trawler was stopped and sunk in the Atlantic Ocean 18 nautical miles (33 km) south of St. Kilda, Inverness-shire, United Kingdom by
SM U-19 ( Kaiserliche Marine).
Landonia (United Kingdom) The cargo ship was torpedoed and sunk in the Irish Sea 27 nautical miles (50 km) north west by west of Strumble Head, Pembrokeshire by
SM U-91 ( Kaiserliche Marine) with the loss of 21 of her crew. One of the survivors was taken as a prisoner of war.
Normandiet (United Kingdom) The cargo ship was torpedoed and sunk in the Irish Sea 34 nautical miles (63 km) south west by west of the Calf of Man, Isle of Man by
SM U-91 ( Kaiserliche Marine) with the loss of nineteen of her crew.
SM UB-71 (Kaiserliche Marine) The Type UB III submarine was depth charged and sunk in the Strait of Gibraltar (35°38′N 5°18′W) by
HMML 413 ( Royal Navy) with the loss of all 32 crew.
Westergate (United Kingdom) The cargo ship was torpedoed and sunk in the English Channel 22 nautical miles (41 km) east of Start Point, Devon by
SM UB-80 ( Kaiserliche Marine) with the loss of 24 of her crew.
