There were three main causes for the Great War. One of them was if two countries went to war, then most of Europe would be at war as well. As well, the fact that countries were getting selfish with how much land they wanted to call their own. And finally, a student named Gavrilo Princip played a vital role in Serbia and Austria-Hungary’s role in the war, which eventually led to many other countries …showed first 75 words of 387 total…

…showed last 75 words of 387 total…Russia. Once France tried to defend Russia, Germany declared war on them as well, and attacked through Belgium, breaching the Treaty of London, which stated, that many nations, including Britain and Germany would defend Belgium against future attacks. And finally, on August 4, 1914, Britain declared war on Germany. One nation, Austria-Hungary, trying to take over another nation, the Balkans, proved to be the start of all the countries in the alliances declaring war on each other.