On 28 June 1914, a Serbian shot an Austrian. Within six weeks, many of the countries of Europe had become involved in a war that was to cause the deaths of 10 million soldiers, but was the assassination the only cause of war?
Four underlying causes of war
The assassination of Archduke Franz Ferdinand signalled the rapid slide into world war, but this wasn't the only cause. There were underlying causes in the run-up to the First World War.