Europe 1917: United States Enters the War
6 April 1917
6 Apr 1917
The Great War
-27–68 The Julio-Claudian Dynasty
68–96 The Flavian Dynasty
96–192 The Nerva–Antonine Dynasty
192–235 The Severan Dynasty
235–285 The Crisis of the Third Century
285–1815 NO MAPS FOR THIS PERIOD YET
1815–1848 Congress Europe
1848–1850 The Springtime of Peoples
1850–1859 The Crimean War
1859–1862 Italian Unification
1862–1871 German Unification
1871–1914 Imperial Europe
1914–1918 The Great War
1918–1922 Armistice Europe
1922–1939 The Rise of Fascism
1939–1942 World War II: Blitzkrieg
1942–1945 World War II: Fall of the Third Reich
1945–1990 The Cold War
1990–2010 Post-Cold War Europe
2010–pres The Crisis of Europe
United States Enters the War
4 Aug 1914 Outbreak of the Great War
5 Sep 1914 Great Retreat
26 Dec 1914 Stalemate on the Western Front
26 Apr 1915 Gallipoli Campaign
4 Nov 1915 Central Power Breakthrough in the East
21 Feb 1916 Battle of Verdun
20 Sep 1916 Somme and Brusilov Offensives
12 Jan 1917 Collapse of the Eastern Front
6 Apr 1917 United States Enters the War
11 Jul 1917 Kerensky Offensive
7 Nov 1917 October Revolution in Russia
1 Dec 1917 Bolsheviks Gain Control in Russia
20 Mar 1918 Treaty of Brest-Litovsk
18 Jul 1918 German Spring Offensive
20 Sep 1918 Allied Hundred Days Offensive
25 Oct 1918 Collapse of the Central Powers
8 Nov 1918 German Revolution
11 Nov 1918 Armistice Day
With Russia crumbling, Germany moved to increase its pressure on the West. On February 1, it announced unrestricted submarine warfare in an attempt to starve Britain into surrender. This aggravated relations with the United States and, when German plans to incite a war between Mexico and the U.S. were uncovered, America declared war.
