Marne: FIRST BATTLE OF THE MARNE ENDS. Joffre orders hot pursuit (‘victory is now in the legs of the infantry’) of Kluck; Maunoury links with BEF. French X Corps marches 12 miles (ca. 19 km).
First British general killed, Brigade-General N Findlay of 1st Division CRA by shellfire.
Formal operation orders issued by German GHQ at 1630 hours confirm retirement from the Marne: Second Army sent behind river Vaste; Kluck demoted and placed under Bülow’s orders, which are to fall back behind river Aisne; Third, Fourth and Fifth Armies to continue to hold ‘quiet’ line Reims-Verdun.
East Prussia: Rennenkampf covers retreat (95 miles (ca. 153 km) in 50 hours) by counter-attack, evacuates Insterburg.
Poland: Second Battle of Krasnik. Dankl beaten, also Archduke Joseph at Opole. 40,000 respectively 50,000 men lost.
Galicia: Dragomirov’s Cavalry Corps and Plehev’s Fifth Army turn Auffenberg’s left. Charge by 7 squadrons of Kaledin’s 12th Cavalry Division checks Austrian Second Army attack after it outflanks Kornilov’s 48th Division (28 guns lost) on Brusilov’s southern flank.
East Africa: 300 Germans occupy Karungu near Lake Victoria, threaten Kisii. 300 British soldiers force the Germans to retreat on September 13, but retiring as well.
Britain: Commons votes for a second Army recruitment of 500,000 men. 439,000 recruits since August 4. 12 additional new Army divisions authorized
Germany: 12 Jaeger battalions activated.
Kaiser cables US President Wilson ‘my heart bleeds’ for Belgium, but Belgians to blame. He also condemns Allied use of ‘dum dum’ bullets.