The Outbreak of WW1 By amyhurst Jun 28, 1914 Arch Duke Franz Ferdinand and his wife shot at Serbia. Period: Jun 28, 1914 to Dec 1, 1914 Outbreak of WW1 Aug 1, 1914 Germany declared war on Russia. Aug 4, 1914 Germany invaded Belgium and attacked France. Aug 4, 1914 Britain declared war on Germany. Sep 25, 1914 5,000 Australian Troops marched through Melbourne. This was before heading off to war. Oct 16, 1914 Transports carrying men, equipment and horses sailed from Sydney to Melb to King George in Western Australia. Nov 1, 1914 A fleet of 38, full of Australia troops, left for the battlefront of Europe.