Eastern Front
Austro-Germans checked on the Zurawno-Demeszknowiec line (Dniester front).
A combined Austro-Hungarian and German army captures Lemberg (Lviv), capital of Galicia, from the Russians.
Russian prisoners being led through Lemberg.
Naval
U.40 sunk by decoy combination trawler Taranaki/submarine C.24 off Aberdeen, first success by decoy ship against a U-boat.
Atlantic off NW Scotland
Bush, Admiralty trawler, 221/1908, Milford-reg, hired 5/15, 1-12pdr, Skipper G King, on patrol off Hebrides about 8 miles NNW of Butt of Lewis, two drifters fishing nearby, wind blowing hard, "considerable sea". Shell landed nearby and submarine sighted, returned fire, third shot fell near the U-boat which submerged, Bush slightly damaged by the six shells fired at her; Admiralty awarded £60 to the crew.
Aviation
The Royal Flying Corps decreed all aircraft with covered fuselages were to use the tricolor roundel, previously used on just the wings, on fuselage sides.
Political, etc.
Lloyd George, as Minister of Munition, orders a seven day campaign to recruit enough men to fill positions at armament factories.
Carl Frederick Muller becomes the 2nd man to be executed in the Tower of London for spying.
French government declares it will not issue passports to Americans of German origin due to the fear of spies.
Robert Lansing is officially made the new U.S. Secretary of State.
Ship Losses:
Elizabeth ( United Kingdom): The drifter was shelled and sunk in the North Sea 40 nautical miles (74 km) east north east of the Out Skerries, Orkney Islands by
SM U-38 ( Kaiserliche Marine). Her crew survived.
Four ( United Kingdom): The drifter was shelled and sunk in the North Sea 45 nautical miles (83 km) north east by east of the Out Skerries by
SM U-38 ( Kaiserliche Marine). Her crew survived.
Josephine ( United Kingdom): The drifter was shelled and sunk in the North Sea 40 nautical miles (74 km) north east by east of the Out Skerries by
SM U-38 ( Kaiserliche Marine). Her crew survived.
Piscatorial ( United Kingdom): The drifter was shelled and sunk in the North Sea 41 nautical miles (76 km) east north east of the Out Skerries by
SM U-38 ( Kaiserliche Marine). Her crew survived.
HMT Quail III ( Royal Navy): The naval trawler collided with Bulldog ( United Kingdom) and sank in the English Channel 7 nautical miles (13 km) south west of Portland Bill, Dorset. Her crew survived.
Research ( United Kingdom): The drifter was shelled and sunk in the North Sea 42 nautical miles (78 km) north east of the Out Skerries by
SM U-38 ( Kaiserliche Marine). Her crew survived.
Truma ( Norway): The cargo ship was sunk in the North Sea south of the Shetland Islands, United Kingdom (59°54′N 0°09′E) by
SM U-38 ( Kaiserliche Marine). Her crew survived.
Tunisiana ( United Kingdom: The cargo ship was torpedoed and damaged in the North Sea off Lowestoft, Suffolk by SM
UB-16 ( Kaiserliche Marine). She ran aground on the Barnard Sands and was a total loss. Her crew survived.
SM U-40 ( Kaiserliche Marine): The Type U 31 submarine was torpedoed and sunk in the North Sea off Eyemouth, Berwickshire, United Kingdom by
HMS C24 ( Royal Navy) with the loss of 38 of her 41 crew.
Uffa ( United Kingdom): The drifter was shelled and sunk in the North Sea 40 nautical miles (74 km) east north east of the Out Skerries by
SM U-38 ( Kaiserliche Marine). Her crew survived.
Ugiebrae ( United Kingdom): The drifter was shelled and sunk in the North Sea 35 nautical miles (65 km) east north east of the Out Skerries by
SM U-38 ( Kaiserliche Marine). Her crew survived.