17th June 1917
Western Front
Germans capture French trenches near Hurtebise.
Portuguese in action for first time.
Southern Front
Austrian attacks on Asiago Plateau (Trentino) and Vodice repulsed.
Italian advance near Jamiano (Carso).
Aviation
Two Zeppelins raid Kent and the eastern counties, resulting in three deaths and 16 injuries. One Zeppelin is shot down.
Political, etc.
Russian Duma announces a resolution for an immediate offensive by Russian troops against the Germans.
Germany announces it will allow neutral ships stuck in British ports to safely leave on July 1st.
Germany moves prisoners of war at least 30 kilometers from the frontlines to keep them away from artillery range.
Ship Losses:
Aghios Georgios (Greece) The sailing vessel was sunk in the Mediterranean Sea 30 nautical miles (56 km) west of Malta (35°37′N 13°49′E) by
SM UC-22 ( Kaiserliche Marine).
Anjou (French Navy) The auxiliary minesweeper struck a mine laid by
UC 48 (Kurt Ramien) and sank in the Adour at Bayonne, Pyrénées-Atlantiques (43°35′N 1°32′W). Her crew survived.
Antonios M. Mavrogordatos (Greece) The cargo ship was torpedoed and sunk in the Atlantic Ocean 7 nautical miles (13 km) south of the Wolf Rock, Cornwall, United Kingdom (49°55′N 5°59′W) by
SM UC-48 ( Kaiserliche Marine).
Argentina (Italy) The sailing vessel was sunk in the Gulf of Gabès off Djerba, Tunisia by
SM UC-27 ( Kaiserliche Marine).
Bell Angelina (Italy )The fishing vessel was sunk in the Gulf of Gabès by
SM UC-27 ( Kaiserliche Marine).
Fornebo (United Kingdom) The tanker was torpedoed and sunk in the Atlantic Ocean 4 nautical miles (7.4 km) north of Cape Wrath, Sutherland by
SM U-78 ( Kaiserliche Marine). Her crew survived.
HMT Fraser (Royal Navy) The naval trawler struck a mine laid by
UC 65 (Otto Steinbrinck) and sank in the English Channel off Boulogne, Pas-de-Calais, France with the loss of twelve of her crew.
Giuseppe S. (Italy) The fishing vessel was sunk in the Gulf of Gabès by
SM UC-27 ( Kaiserliche Marine).
Gunhild (Denmark) The coaster was torpedoed and sunk in the Barents Sea 22 nautical miles (41 km) off Holmengrå, Finnmark, Norway (60°45′N 4°19′E) by
SM U-100 ( Kaiserliche Marine) with the loss of six of her crew.
Lizzie Westoll (United Kingdom) The cargo ship was torpedoed and sunk in the Atlantic Ocean 120 nautical miles (220 km) north west by west of the Fastnet Rock (51°39′N 12°44′W) by
SM UC-42 ( Kaiserliche Marine). Her crew survived.
Luigina (Italy) The fishing vessel was sunk in the Gulf of Gabès by
SM UC-27 ( Kaiserliche Marine).
Nostra Madre (Italy) The barque was shelled and sunk in the Atlantic Ocean 70 nautical miles (130 km) east of the Fastnet Rock by
SM U-60 ( Kaiserliche Marine).
Raloo (United Kingdom) The cargo ship was torpedoed and sunk in St. George's Channel 6 nautical miles (11 km) south east by east of the Coningbeg Lightship ( United Kingdom) by
SM U-61 ( Kaiserliche Marine) with the loss of three crew.
San Antonio V (Italy) The fishing vessel was sunk in the Gulf of Gabès by
SM UC-27 ( Kaiserliche Marine).
Stanhope (United Kingdom) The cargo ship was torpedoed and sunk in the English Channel 7 nautical miles (13 km) south west by west of Start Point, Devon (50°08′N 3°45′W) by
SM UB-31 ( Kaiserliche Marine) with the loss of 22 of her crew.
HMS Tartar (Royal Navy) The Tribal-class destroyer struck a mine laid by
UC 65 (Otto Steinbrinck) and was damaged in the English Channel off Boulogne with the loss of 45 of her crew.
Tosto (Norway) The cargo ship struck a mine laid by
UC 49 (Karl Petri) and sank off Noup Head, Westray, Orkney Islands, United Kingdom. Her crew survived.