Western Front
Battle of the Somme: Britain makes small gains north of Bazentin-le-Petit and France advances in the woods between Guillemont and Maurepas.
Great artillery activity on the Somme.
Southern Front
Salonika: Bulgaria takes two Greek forts near the river Struma and advances towards the port city of Kavala.
Sarrail and his five Allied commanders agree to postpone offensive but launch counter-offensive as Bulgar 7th Division causes 380 casualties to retreating French. Serbian General Jurisic-Stürm replaced in command of Third Army by General Vassic.
Serbs throw back Bulgarians in Moglena sector (Balkans).
Secret War: Austro-Hungarians crack new Italian cipher system in 38 hours.
Asiatic and Egyptian Theaters
Armenia: IV Caucasus Corps retakes Mus bridge and 500 PoWs.
Persia: Baratov halts on Sultanbulak Pass 50 miles north of Hamadan, has 7,000 fit troops and 22 guns against 17,000 exhausted Turks.
Naval and Overseas Operations
Mediterranean: U-35 (Arnauld) returns to Cattaro after record-breaking 25-day cruise (since July 26) total sinkings with 900 shells and 4 torpedoes: 54 ships (32 Italian carrying 50,000t coal), totalling 91.000t mainly in Western Mediterranean (French patrol areas).
Political, etc.
Germany: Germany announces that this year’s crops exceed those during peace and that there is no need to worry about food supplies.
United Kingdom: Sir Charles Monro is appointed the new commander in chief of British troops in India:
http://imgur.com/U5kdGE9
Austria-Hungary: Austro-Montenegrin peace talks broken off.
Canada: A fire at a black powder factory in Drummondville, Quebec results in the deaths of five workers and over a dozen injuries.
United States: President Wilson: “The eight-hour [work] day now undoubtedly has the sanction of the judgement of society in its favor…”