Causes of World War One Quickquiz 1. The assassination of Franz Ferdinand triggered World War One. 2. The Triple Alliance was an agreement between Britain, France and Russia 3. The British Empire extended over five continents. 4. Germany only had a few colonies in Africa. 5. The Schleiffen Plan was a plan to attack Russia through Prussia. 6. At the end of the Napoleonic wars France lost Alsace Lorraine to Germany 7. Large areas of Austria-Hungary and Bosnia contained nationalist groups 8. Morocco wanted independence from Russia. 9. Austria-Hungary took control of Bosnia in 1908. 10. Germany declared war on Britain and France in 1914.