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World War I cryptography. With the rise of easily-intercepted wireless telegraphy, codes and ciphers were used extensively in World War I. The decoding by British Naval intelligence of the Zimmermann telegram helped bring the United States into the war. Trench codes were used by field armies of most of the combatants (Americans, British, French ...
The sets of armies joined battle on both sides. General Pierre Ruffey 's Third Army to the south and Fernand de Langle de Cary 's Fourth Army to the north, fighting Germany's Fourth, led by Duke Albrecht, and Fifth army, led by Crown Prince Wilhelm. [6] The German troops started moving through the forest on 19 August.
World War I[ j] or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a global conflict between two coalitions: the Allies (or Entente) and the Central Powers. Fighting took place mainly in Europe and the Middle East, as well as in parts of Africa and the Asia-Pacific, and in Europe was characterised by ...
Trench codes (a form of cryptography) were codes used for secrecy by field armies in World War I. [1] [2] Messages by field telephone, radio and carrier pigeons could be intercepted, hence the need for tactical World War I cryptography. Originally, the most commonly used codes were simple substitution codes, but due to the relative ...
The United States declared war on the German Empire on April 6, 1917, nearly three years after World War I started. A ceasefire and armistice were declared on November 11, 1918. Before entering the war, the U.S. had remained neutral, though it had been an important supplier to the United Kingdom, France, and the other powers of the Allies of ...
Causes of World War I. European diplomatic alignments shortly before the war. The Ottomans joined the Central Powers shortly after the war started, with Bulgaria joining the following year. Italy remained neutral in 1914 and joined the Allies in 1915. Map of the world with the participants in World War I c. 1917.
Western Front (World War I) The Western Front was one of the main theatres of war during the First World War. Following the outbreak of war in August 1914, the German Army opened the Western Front by invading Luxembourg and Belgium, then gaining military control of important industrial regions in France. The German advance was halted with the ...
The Allies, the Entente or the Triple Entente was an international military coalition of countries led by France, the United Kingdom, Russia, the United States, Italy, and Japan against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria in World War I (1914–1918). By the end of the first decade of the 20th ...