During World War I, the German Empire was one of the Central Powers. It began participation in the conflict after the declaration of war against Serbia...

between 1914 and 1918. When World War I started, Polish territory was split during the partitions between Russian Empire, the German Empire and Austria-Hungary...

Technology during World War I (1914–1918) reflected a trend toward industrialism and the application of mass-production methods to weapons and to the technology...

Станислав Кельнер History of Germany during World War I Hungary in World War I Invasion of Serbia by Bulgaria during the First World War Salzburg Negotiations...

Australia, the outbreak of World War I was greeted with considerable enthusiasm. Even before Britain declared war on Germany on 4 August 1914, the nation...

see Diplomatic history of World War I. Below is a table showing the outbreaks of wars between nations which occurred during World War I. Indicated are...

was a leading Allied Power during the First World War of 1914–1918. They fought against the Central Powers, mainly Germany. The armed forces were greatly...

Japan participated in World War I from 1914 to 1918 as a member of the Allies and played an important role against the Imperial German Navy. Politically,...

At the onset of World War I, Vietnam, nominally under the Nguyễn dynasty, was under French protectorate and part of French Indochina. While seeking to...

military history of Canada during World War I began on August 4, 1914, when the United Kingdom entered the First World War (1914–1918) by declaring war on Germany...