Lead Up To WW1 By chloe02 Jun 28, 1914 Arch Duke Franz Ferdinand was assassinated by Bosnian Nationalists Jul 23, 1914 Austria Hungary made demands to Serbia hoping they would refuse so they could invade their land Jul 25, 1914 Serbia gave in on 9 out of 10 demands and mobilised their army Jul 28, 1914 Austria Hungary declared war against Serbia and called on Germany to help Jul 30, 1914 Russia started to mobilise their army Jul 31, 1914 Austria Hungary mobilised against Serbia. Germany wanted Russia to demobilise but they said no Aug 1, 1914 Germany declared war and mobilised against Russia while starting to think about the Schlieffen plan. France mobilised troops against Germany Aug 2, 1914 Germany moved through Luxenbourg Aug 3, 1914 Germany declared war on France Aug 4, 1914 Germany officially invaded Belgium. Britain declared war on Germany