August 30 - Battle of Tannenburg

German Samoa is occupied by New Zealand forces, representing New Zealand's first military action in the war.

The end of the Battle of Tannenburg Fought between the Russian Second Army against the German Eighth Army between 26 August and 30 August, the battle resulted in the almost complete destruction of the Russian Second Army, and the suicide of its commanding general, Alexander Samsonov

The latter stages of the Battle of Tannenburg

The 26th Brigade RFA marches from St Gobain to Allemant.