The Doctor: In June 1914, an Archduke of Austria was shot by a Serbian and this then led, through nations having treaties with nations, like a line of dominoes falling, to some boys from England walking together in France on a terrible day.
On 28 June 1914, Gavrilo Princip, a Yugoslav student, killed Archduke Franz Ferdinand, the heir to the Austro-Hungarian throne, in Sarajevo. The assassination in Sarajevo set into motion a series of fast-moving events that escalated into a full-scale war that lasted from 1914 to1918. Over nine million people died in the conflict. Among them were English boys who had lied about their age in order to enter into battle for King and Country.