September 11

The Russians secure a victory against Austria Hungary at the Battle of Rawa. Causalties on both sides number more than half a million.

The Battle of Rawa (3-11 September)

Troops from the Australian Expeditionary Force capture Rabaul, on German New Guinea. The Australian losses are six dead and four wounded, the first Australian military casualties of the First World War.

In France, the Allies are reported to have advanced over 37 miles in four days.

The 26th Brigade RFA marches with the 1st Brigade as Divisional Advance Guard to Trugny.