The growth of the British army caused but led to countries strengthening their military which was imperialism. the Balkans and establish a 'Greater Serbia', a unified state for all Slavic people. It was this pan-Slavic nationalism that inspired the assassination of Archduke Franz Ferdinand in Sarajevo on June 28, 1914.
Selective Service Act
On April 22, 1915, German forces shock Allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas. Against two French colonial divisions at Ypres, Belgium. This was the first major gas attack by the Germans, and it devastated the Allied line.
Germany and Russia Peace
When World War I erupted in 1914, President Woodrow Wilson pledged neutrality for the United States. Britain was one of America’s closest trading partners, and tension soon arose between the United States and Germany. Several U.S. ships traveling to Britain were damaged or sunk by German mines, and in February 1915 Germany announced unrestricted warfare against all ships, neutral or otherwise, that entered the war zone around Britain.
All these countries celebrate Armistice Day but call it something different.
Congress passed the Selective Service Act, which Wilson signed into law on May 18, 1917. The act required all men in the U.S. between the ages of 21 and 30 to register for military service.
The Treaty of Brest-Litovsk was a peace treaty signed on 3 March 1918 between the new Bolshevik government of Soviet Russia and the Central Powers, that ended Russian participation in World War I. They abandoned the Allied war effort and granting independence to its Polish and Baltic territories, the Ukraine, and Finland.
At the 11th hour on the 11th day of the 11th month of 1918, the Great War ends. At 5 a.m. that morning they signed an armistice agreement with the Allies in Compiégne, France. World War I was known as the “war to end all wars” because of the great slaughter and destruction it caused. Unfortunately, the peace treaty that officially ended the conflict the Treaty of Versailles of 1919.