| Dates |
Events |
|
| July 14 – September 15
|
Battles for Longueval and Delville Wood (Initial phase of the Battle of the Somme)
|
Details
|
| September 3–6
|
Battle of Guillemont (intermediate phase of the Battle of the Somme)
|
Details
|
| September 5–7
|
Battle of Dobrich, a phase of the conquest of Romania.
|
|
| September 6
|
The Central Powers create a unified command.
|
|
| September 7–11
|
Battle of Kisaki.
|
|
| September 9
|
Battle of Ginchy (intermediate phase of the Battle of the Somme)
|
Details
|
| September 12 – December 11
|
Monastir Offensive, set up of the Salonika Front.
|
|
| September 12–14
|
Battle of Malka Nidzhe, a phase of the Monastir Offensive.
|
|
| September 12–30
|
Battle of Kaymakchalan, a phase of the Monastir Offensive.
|
|
| September 14–17
|
Seventh Battle of the Isonzo
|
|
| September 15–22
|
Battle of Flers-Courcelette; the British use armored tanks for the first time in history.
|
Details
|
| September 17–19
|
First Battle of Cobadin, a phase of the conquest of Romania.
|
|
| September 20
|
The Brusilov Offensive ends with a substantial Russian success.
|
Details
|
| September 25–28
|
Battle of Morval (part of the final stages of the Battle of the Somme)
|
Details
|
| September 26–28
|
Battle of Thiepval Ridge (part of the final stages of the Battle of the Somme)
|
Details
|
| September 29 – October 5
|
Flamanda Offensive, a phase of the conquest of Romania.
|
|
