2026 results for “World War” — type: events (293 ms)
World War II: Continuation War: The Vyborg–Petrozavodsk Offensive, the largest offensive launched by Soviet Union against Finland during the Second World War, ends to a strategic stalemate. Both Finni�
World War I: The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
World War I: The Swiss Army mobilizes because of World War I.
World War I: Beginning of the Battle of Cer, the first Allied victory of World War I.
World War II: Japanese forces evacuate New Georgia Island in the Pacific Theater of Operations during World War II.
World War II: Germany and Slovakia invade Poland, beginning the European phase of World War II.
World War II: The British Royal Air Force suffers its first fighter pilot casualty of the Second World War at the Battle of Barking Creek as a result of friendly fire.
World War II: The last German troops retreat from Finnish soil in Lapland, ending the Lapland War. Military actions of the Second World War end in Finland.
World War I: Serbia declares war on Germany; Austria declares war on Russia.
World War I: The Republic of China, which had heretofore been shipping labourers to Europe to assist in the war effort, officially declares war on the Central Powers, although it will continue to send�
World War I: The Kingdom of Romania declares war on Austria-Hungary, entering the war as one of the Allied nations.
World War II: The last German formations withdraw from Finland to Norway. The Lapland War and thus, World War II in Finland, comes to an end and the Raising the Flag on the Three-Country Cairn photogr�
World War II: The Battle of Kursk, the largest full-scale battle in history and the world's largest tank battle, begins in the village of Prokhorovka.
World War II: The largest trade convoy of the world wars arrives safely in the Western Approaches.
World War I: In the culmination of the July Crisis, Austria-Hungary declares war on the Kingdom of Serbia and begins the Great War.
World War II: Soviet–Japanese War: The USSR State Defense Committee issues Decree no. 9898cc "About Receiving, Accommodation, and Labor Utilization of the Japanese Army Prisoners of War".
World War II: France, the United Kingdom, New Zealand and Australia declare war on Germany after the invasion of Poland, forming the Allied nations. The Viceroy of India also declares war, but without�
World War II: Gunners of the Ceylon Garrison Artillery on Horsburgh Island in the Cocos Islands rebel in the Cocos Islands Mutiny. Their mutiny is crushed and three of them are executed, the only Brit�
Causes of World War I: Archduke Franz Ferdinand of Austria and his wife Sophie are assassinated in Sarajevo, beginning the July Crisis and providing the casus belli of World War I.
World War I: The German colony of Togoland surrenders to French and British forces after a 20-day campaign. Togoland is the first German colony to fall to Allied hands in World War I.