Spain remained neutral throughout World War I between 28 July 1914 and 11 November 1918, and despite domestic economic difficulties, it was considered...

During World War II, the Spanish State under Francisco Franco espoused neutrality as its official wartime policy. This neutrality wavered at times, and...

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...

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

During World War I (1914–1918), Brazil initially adopted a neutral position. They did this in accordance with the Hague Convention, in an attempt to maintain...

and the Central Powers during the First World War. For the global picture, see Propaganda in World War I. At the start of the war various government departments...

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. The...

During World War I and World War II, Switzerland maintained armed neutrality, and was not invaded by its neighbors, in part because of its topography,...

China participated in World War I from 1917 to 1918 in an alliance with the Entente Powers. Although China never sent troops overseas, 140,000 Chinese...

Conflicts took place in North Africa during World War I (1914–1918) between the Central Powers and the Entente and its allies. The Senussi of Libya sided...

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

The Kingdom of Romania was neutral for the first two years of World War I, entering on the side of the Allied powers from 27 August 1916 until Central...

During the First World War (1914–1918), Denmark maintained its neutrality. The position of neutrality was agreed to by all the major political parties...

causing at least 170 casualties. About 12,000 Portuguese troops died during World War I, including Africans who served in its armed forces on the colonial...

The Ottoman Empire came into World War I as one of the Central Powers. The Ottoman Empire entered the war by carrying out a small surprise attack on the...

against the Kingdom of Serbia during the First World War. The first campaign began after Austria-Hungary declared war on Serbia on 28 July 1914. The...

Women in World War I were mobilized in unprecedented numbers on all sides. The vast majority of these women were drafted into the civilian work force...

involved in World War I as part of the British Empire. More than one million Indian troops served overseas, of whom more than 60,000 died during the war. In World...

During World War I (1914–1918), belligerents from both the Allied Powers and Central Powers violated international criminal law, committing numerous war...

The home front during World War I covers the domestic, economic, social and political histories of countries involved in that conflict. It covers the mobilization...

The Eastern Front or Eastern Theater of World War I (German: Ostfront; Romanian: Frontul de răsărit; Russian: Восточный фронт, romanized: Vostochny front)...

international conflicts that occurred during the first half of the 20th century, World War I (1914–1918) and World War II (1939–1945), although some historians...

Technology played a significant role in World War II. Some of the technologies used during the war were developed during the interwar years of the 1920s and...

The British Army during the First World War fought the largest and most costly war in its long history. Unlike the French and German Armies, the British...

The German occupation of France during World War I refers to the period in which French territory, mostly along the Belgian and Luxembourgish border, was...

timeline of declarations of war during World War II. A declaration of war is a formal act by which one nation goes to war against another. The declaration...

During World War I, Venezuela maintained a position of neutrality in the four years of the conflict during the dictatorship of Juan Vicente Gómez. Por...

Sweden maintained its policy of neutrality during World War II. When the war began on 1 September 1939, the fate of Sweden was unclear. But by a combination...

The United States entered into World War I in April 1917, more than two and a half years after the war began in Europe. Apart from an Anglophile element...

This is a list of war crimes committed during World War II. The Axis powers (Nazi Germany, Fascist Italy, and Imperial Japan) were some of the most systematic...