A fleet carrier is intended to operate with the main fleet and usually provides an offensive capability. These are the largest carriers capable of fast speeds. By comparison, escort carriers were developed to provide defense for convoys of ships. They were smaller and slower with lower numbers of aircraft carried.
The First World War was sparked in the Balkans in 1914 when members of Mlada Bosna, a revolutionary organization with predominately Serbian and pro-Yugoslav members, assassinated the Austro-Hungarian heir Archduke Franz Ferdinand of Austria in Bosnia and Herzegovina's capital, Sarajevo.
Russia: Russia, along with Britain and France, was one of the major Allied Powers, and first among the nations to mobilize troops against Germany. Serbia: The outbreak of World War I was triggered by the assassination of Archduke Franz Ferdinand of Austria-Hungary in Sarajevo, Serbia.orld War I, however, was truly global in its outreach because colonies of European nations also went to war. Austria-Hungary: Austria-Hungary initiated World War I by declaring war on Serbia in July 1914.