6th May 1917
Western Front
French successfully resist all German counter-attacks on the Aisne: 29,000 prisoners taken by French since 10 April.
Third big German counter-attack near Souchez River (Lens) unsuccessful.
Southern Front
Violent artillery actions on Trentino and Julian front.
Aviation
T.E. Lawrence (2nd from right) and his party on a mission to recover a crashed aeroplane at Wadi Hamdh.
Political, etc.
Mass meeting at Salonika demands deposition of King Constantine.
Food riots occur in Stockholm, Sweden, which was triggered by the lack of potatoes.
Russian Provisional Government forbids public meetings and demonstrations for the next two days in response to recent disturbances.
Ship Losses:
Adansi (United Kingdom) The Elder Dempster 2,644 grt cargo ship was torpedoed and sunk in the Atlantic Ocean 80 nautical miles (150 km) west of the Fastnet Rock (50°40′N 11°05′W) by
SM U-21 ( Kaiserliche Marine) while en route from Sierra Leone to Liverpool. Her crew survived.
Francesco (Italy) The cargo ship was sunk in the Bay of Biscay off the La Coubre Lighthouse, Charente-Maritime, France by
SM UC-72 ( Kaiserliche Marine). Her crew survived.
Gurth (Norway) The cargo ship was scuttled in the Bay of Biscay 1.5 nautical miles (2.8 km) off Vaca de Luanco, Spain (43°39′N 5°48′W) by
SM UC-69 ( Kaiserliche Marine). Her crew survived.
Harold (Sweden) The cargo ship was shelled and sunk in the North Sea[116] 76 nautical miles (141 km) north east by north of the mouth of the River Tyne by
SM UB-21 ( Kaiserliche Marine) with the loss of five crew.
Hebble (United Kingdom) The coaster struck a mine laid by
UC 42 (Otto Heinrich Tornow) and sank in the North Sea 1.5 nautical miles (2.8 km) east of Roker, County Durham (54°55′N 1°18′E) with the loss of five of her crew.
Kaparika (Norway) The cargo ship was torpedoed and sunk in the North Sea 30 nautical miles (56 km) east of Aberdeen, United Kingdom by
SM UC-77 ( Kaiserliche Marine) with the loss of a crew member.
Poseidon I (Netherlands) The fishing vessel was shelled and sunk in the North Sea 9 nautical miles (17 km) north of the Dogger Bank North Lightship ( United Kingdom) by
SM UC-30 ( Kaiserliche Marine). Her crew survived.
President (France) The barque was shelled and sunk in the Atlantic Ocean 12 nautical miles (22 km) west of Trevose Head, Cornwall, United Kingdom (50°31′N 5°21′W) by
SM UC-75 ( Kaiserliche Marine). Her crew survived.
Voss (Norway) The cargo ship was sunk in the Bay of Biscay 1.5 nautical miles (2.8 km) off Vaca de Luanco (43°39′N 5°47′W) by
SM UC-69 ( Kaiserliche Marine). Her crew survived.