Western Front
Battle of the Somme: South of the Ancre, British advance, taking "Quadrilateral" between Bouleaux Wood and Ginchy, on a front of a mile, to a depth of 1,000 yards.
French I Corps executes two successful local (evening) surprise attacks and gain ground south and southeast of Combles. And take Deniecourt.
Eastern Front
Brusilov Offensive: Russian forces under General Brusilov launch further attacks against Lemberg, Halicz, and Krasne.
Transylvania: Heavy fighting at Merisor, Romanians moving towards Hatszeg. However, German troops launch a counterattack against Romanian forces in Hațeg, bringing a temporary halt to the Romanian offensive in Transylvania.
Dobruja: Russo-Romanians fall back to Rasova-Tuzla line.
Southern Front
Macedonia: Franco-Russian troops enter Florina, Bulgarians start retreating on Monastir.
Serbs occupy parts of Mt. Kaymakchlan.
Greek IVth Army Corps at Kavala surrenders voluntarily to German forces.
Asiatic and Egyptian Theaters
Mesopotamia: British aeroplanes bomb enemy aerodrome in the Shumran bend (above Kut-el-Amara).
Sinai: British raid Bir-el-Tawal (30 miles south of El Kubri, Suez).
Political, etc.
United Kingdom: General Haig: “Our armored cars [tanks] gallantly led the action, causing indescribable demoralization in the enemy’s ranks.”
United States: Colonel Robert M. Thompson, President of the U.S. Navy League, predicts German can hold out until 1921.
“Joy Riding” from the New York Tribune:
http://imgur.com/HDUPZvz
Australia: New South Wales: Political Labour League carries resolution expelling Prime Minister, Mr. Hughes, from the Labour movement.