Sept. 5 (Sat.)
The Franco-British retreat ends; Joffre orders a counter-offensive. The Germans take Rheims and on their right are close to Paris. Heavy fighting on the Ourcq.
The British light cruiser Pathfinder is sunk, with serious loss of life, by a German submarine off St. Abb's Head (the first ship to be sunk by a submarine).
Sept. 6 (Sun.)
The Allied offensive in France begins with the First Battle of the Marne (see Sept. 10). A decisive day in the Battle of Nancy (see Aug. 22 and Sept. 11); German attacks are repulsed.
East Prussia:—The Battle of the Masurian Lakes begins (see Sept. 12).
In Galicia, the Battle of Grodek begins (see Sept. 13).
Sept. 7 (Mon.)
Maubeuge surrenders to the Germans (see Aug. 26). The Allies press forward in France.
The Germans advance into Russia.