War • War is a state of armed confict between autonomous organizatons (such as states and non-state actors ) or alliances of such organizatons. It is generally characterized by extreme collectve aggression, physical destructon, and usually high mortality. The set of techniques used by a group to carry out war is known as «warfare. » An absence of war is usually called «peace. «
Wars in the world • Russian-Byzantne war , Mongol conquest of Europe and Asia , Russian-Lithuanian War , Russian war with Kazan Khanate , Russian-Polish war , Russian-Turkish war , Russian-Japanese war.
First World War • She began on 28 July 1914 and lasted untl 11 November 1918. Princip in Sarajevo. Partcipants : Quadruple Alliance: Germany, Austria-Hungary, the Ottoman Empire, Bulgaria. • The Entente: Russia, France, United Kingdom. • Allies of the Entente (Entente backed the war): United States, Japan, Serbia, Italy (partcipated in the war on the side of the Entente in 1915, despite the fact that she was a member of the Triple Alliance), Montenegro, Belgium, Egypt, Portugal, Romania, Greece, Brazil, China, Cuba, Nicaragua, Siam, Hait, Liberia, Panama, Guatemala, Honduras, Costa Rica, Bolivia, Dominican Republic, Peru, Uruguay, Ecuador.