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Allies
By 1907 there were two major defense alliances in Europe.
The Triple Entente, later known as the Allies, consisted of France, Britain, and
Russia. -
Central Powers
The Triple Alliance consisted of Germany, Austria-Hungary, and Italy.Germany and Austria-Hungary, together with the Ottoman Empire—an empire of
mostly Middle Eastern lands controlled by the Turks—were later known as the
Central Powers. -
Assasination of Archduke Franz Ferdinand
In June 1914, Archduke Franz Ferdinand, heir to
the Austrian throne, visited the Bosnian capital Sarajevo. As
the royal entourage drove through the city, Serbian nationalist
Gavrilo Princip stepped from the crowd and shot the
Archduke and his wife Sophie. Princip was a member of the
Black Hand, an organization promoting Serbian nationalism.
The assassinations touched off a diplomatic crisis. On
July 28, Austria-Hungary declared what was expected to be a
short war against Serbia. -
Schlieffen Plan
On August 3, 1914, Germany invaded Belgium, following
a strategy known as the Schlieffen Plan. This plan called
for a holding action against Russia, combined with a quick
drive through Belgium to Paris; after France had fallen, the
two German armies would defeat Russia. As German
troops swept across Belgium, thousands of civilians fled in
terror. In Brussels, the Belgian capital, an American war
correspondent described the first major refugee crisis of
the 20th century. -
Sinking of the Brittish Liner (Lusitania)
RMS Lusitania was a British ocean liner, holder of the Blue Riband, and briefly the world's largest passenger ship until the completion of her running mate Mauretania. She was launched by the Cunard Line in 1906, at a time of fierce competition for the North Atlantic trade. On 7 May 1915, she was torpedoed and sunk by a German U-boat, causing the deaths of 1,198 passengers and crew. She had made a total of 202 trans-Atlantic crossings. -
Sinking of the British Liner (Arabic)
SS Arabic was a British-registered ocean liner that entered service in 1903 for the White Star Line. She was sunk on 19 August 1915, during the First World War, by German submarine SM U-24, 50 mi (80 km) south of Kinsale, causing a diplomatic incident -
Battle of the Somme
During the First Battle of the Somme—
which began on July 1, 1916, and lasted until mid-November—the British suffered
60,000 casualties the first day alone. Final casualties totaled about 1.2 million,
yet only about seven miles of ground changed hands. This bloody trench
warfare, in which armies fought for mere yards of ground, continued for over
three years. Elsewhere, the fighting was just as devastating and inconclusive. -
Sinking of the French Passenger Liner (Sussex)
Sussex was a cross-English Channel passenger ferry, built in 1896 for the London, Brighton and South Coast Railway (LBSCR). After the LBSCR came to a co-operation agreement with the Compagnie des Chemins de Fer de l'État Français, she transferred to their fleet under a French flag. Sussex became the focus of an international incident when she was severely damaged by a torpedo from a German U-Boat in 1916. -
Convoy System
The convoy—a group of merchantmen or troopships traveling together with a naval escort—was revived during World War I (1914–18), after having been discarded at the start of the Age of Steam. Although convoys were used by the Royal Navy in 1914 to escort troopships from the Dominions, and in 1915 by both it and the French Navy to cover their own troop movements for overseas service, they were not systematically employed by any belligerent navy until 1916. The Royal Navy was the major user and dev -
Selective Service Act
The Selective Service Act or Selective Draft Act (Pub.L. 65–12, 40 Stat. 76, enacted May 18, 1917) authorized the federal government to raise a national army for the American entry into World War I through the compulsory enlistment of people. It was envisioned in December 1916 and brought to President Woodrow Wilson's attention shortly after the break in relations with Germany in February 1917. The Act itself was drafted by then-Captain (later Brigadier General) Hugh S. Johnson after the United -
Zimmerman Note
The Zimmermann Telegram (or Zimmermann Note) was an internal diplomatic communication issued from the German Foreign Office in January, 1917 that proposed a military alliance between Germany and Mexico in the event of the United States' entering World War I against Germany. The proposal was intercepted and decoded by British intelligence. Revelation of the contents enraged American public opinion and helped generate support for the United States declaration of war on Germany in April of the same -
Austria-Hungary surrenders to the Allies
The Armenian Revolutionary Federation (ARF) (classical Armenian: Հայ Յեղափոխական Դաշնակցութիւն, ՀՅԴ),[a] also known as Dashnaktsutyun,[b] (in a short form, "Dashnak") is an Armenian nationalist and socialist political party[19][20][21][22] founded in 1890 in Tiflis, Russian Empire (now Tbilisi, Georgia) in 1890 by Christapor Mikaelian, Stepan Zorian, and Simon Zavarian.[23] The party operates in Armenia, Nagorno-Karabakh and in countries where the Armenian diaspora is present, notably in Lebanon -
Committiee of Public Information
The Committee on Public Information, also known as the CPI or the Creel Committee, was an independent agency of the government of the United States created to influence U.S. public opinion regarding American participation in World War I. Over just 28 months, from April 14, 1917, to June 30, 1919, it used every medium available to create enthusiasm for the war effort and enlist public support against foreign attempts to undercut America's war aims. It primarily used propaganda techniques to accom -
Espionage and Sedition Acts
The Espionage Act of 1917 is a United States federal law passed on June 15, 1917, shortly after the U.S. entry into World War I. It has been amended numerous times over the years. It was originally found in Title 50 of the U.S. Code (War) but is now found under Title 18, Crime. Specifically, it is 18 U.S.C. -
Second Battle of the Marne
The Second Battle of the Marne (French: Seconde Bataille de la Marne), or Battle of Reims (15 July – 6 August 1918) was the last major German offensive on the Western Front during the First World War. The attack failed when an Allied counterattack by French and American forces, including several hundred tanks, overwhelmed the Germans on their right flank, inflicting severe casualties. The German defeat marked the start of the relentless Allied advance which culminated in the Armistice with Germa -
Establishment of the German Republic
On November 9, socialist leaders in the capital,
Berlin, established a German republic. The kaiser gave up the throne.Although there were no Allied soldiers on German territory and no truly
decisive battle had been fought, the Germans were too exhausted to continue
fighting. So at the eleventh hour, on the eleventh day, in the eleventh month
of 1918, Germany agreed to a cease-fire and signed the armistice, or truce,
that ended the war. -
Cease-fire and Armistice
Germany agreed to a cease-fire and signed the armistice, or truce,
that ended the war. -
National War Labor Board
The National War Labor Board (NWLB) was a United States federal agency created in two different incarnations, the first by President Woodrow Wilson from 1918–19 during World War I and the second by President Franklin D. Roosevelt from 1942–45 during World War II. In both cases the board's purpose was to arbitrate disputes between workers and employers in order to ensure labor reliability and productivity during the war -
Food Administration
A food safety agency or food administration is a kind of agency found in various countries and international organizations with responsibilities related to food, primarily with ensuring the safety of food sold or distributed to the population, and with ensuring that food sellers inform the population of the origins and health qualities and risks associated with food being sold.
