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The assassination set off a chain reaction of alliances and declarations of war, leading to the outbreak of World War I. -
American neutrality kept the U.S. out of direct fighting at first and helped strengthen its economy before it later joined the war in 1917. -
The battle of Marne saved France and defeat and led to a long,bloody stalemate on the western Front. -
The sinking of the Lusitania angered Americans and helped push the United States toward entering World War I. -
The Battle of Verdun showed the horror and high human cost of World War I and became a powerful symbol of French resistance. -
The Sussex Incident highlighted the dangers of unrestricted submarine warfare and made American involvement in WWI more likely. -
The Battle of the Somme highlighted the scale and brutality of WWI and marked an early use of tanks in combat. -
The Zimmermann Telegram was a key factor was a key factor in the beginning into World War 1 -
Germany’s unrestricted submarine warfare escalated the conflict and was a major reason the U.S. joined World War I. -
U.S. entry into WWI provided crucial support that helped the Allies win and shape the post-war world. -
The Selective Service Act made it possible for the United States to raise a strong army and fully participate in World War I. -
The Espionage Act helped the U.S. maintain control and support for the war effort, though it also limited freedom of speech. -
The AEF strengthened the allies and contributed significantly to ending world war 1 -
Wilson’s Fourteen Points provided a vision for global peace and influenced the postwar settlement. -
demonstrating the critical need for public health systems, leading to significant reforms in how governments and international bodies approach pandemics -
allowed Germany to temporarily focus its military efforts on the Western Front and enabled the Bolsheviks to consolidate their power at home. -
it was a major test of freedom of speech and the press, criminalizing criticism of the government and sparking a national debate over the meaning of the First Amendment -
it was a final Allied offensive that helped end World War I by significantly weakening German forces and contributing to the armistice of November 11, 1918 -
It symbolizes the end of the war's hostilities and is now commemorated globally as a day to honor veterans and remember those who died in conflict -
formally ending World War I and shaping the post-war world, though with mixed results. Key outcomes included the creation of the League of Nations to prevent future wars, the imposition of harsh penalties on Germany like territorial losses, severe military restrictions, and heavy reparations, and the redrawing of national boundaries across Europe.