A German military plan formulated in 1905 that outlined how Germany should handle a war on two fronts with Russia and France. It noted that Germany would cut across Belgium and Holland in order to attack Paris. Ideally, France would fall quickly- within the projected six weeks it would take Russia to mobilize.
Trench warfare prevailed on the Western front between 1914 and 1916. In the face of modern firepower, it was thought the best way to do combat. It was largely futile. The small, improvised trenches of the beginning of the war, however, led to vast networks of trench systems.
Battle of Gallipoli
A lengthy campaign, lasting from April of 1915 to January of 1916. Britain invaded Turkey in an effort to force open the Dardenelles. The operation failed.
Battle of Verdun
The longest and one of the deadliest battles of WWI, Verdun lasted from February to December of 1916. Germany attempted to wear down the French town of Verdun, which stood in its way to Paris. The battle ended without a clear victor.
A prototype in the development of the British tank, constructed in the summer of 1915. Though it never saw combat, it was a major innovation in military technology.
Britain, Russia, France, and Italy, centered around the Triple Entente.
A British ocean liner sunk by the Germans on the 7 May 1915. It killed more than 1,000 people on board, including American passengers, and became a symbol for reasons for the U.S.'s entry into the war.
A 1917 proposal from the German Empire to Mexico inciting Mexico to make war against the United States; another reason for the United States' entry into the war.
Battle of the Marne
Sept. 5-9 of 1914, Allied powers stopped German troops on the banks of the Marne River and forced them back 45 miles.
A war in which a belligerent engages in complete mobilization of all available resources and population.
The German Empire, the Austro-Hungarian empire, the Ottoman Empire, and the Kingdom of Bulgaria. 28 Jun 1914 - 11 Nov 1918.
The German Empire opened the Western front by first invading Holland and Belgium, and then taking military control of important industrial regions in France. 1915-1917, there were several major offensives along this front.
Battle of the Somme
Fought from July 1 to November 18 of 1916, an Allied offensive along a 25 mi front. Though it ended up a small victory for the Allies, it cost them 146,000 lives to travel six miles.
Devised in the wake of the Franco-Prussian war and re-taken up in 1913, Plan XVII was a French scheme of mobilization and concentration that would allow for the recapture of Alsace and Lorraine given another war between Germany and France.
The first self-powered machine gun, created by British inventor Sir Hiram Maxim in 1884.