What international organization was proposed by U.S. President Woodrow Wilson after WWI to promote world peace and prevent future wars?
Which treaty officially ended World War I and imposed harsh penalties on Germany?
What new weapon was first effectively used by the British at the Battle of Flers-Courcelette during the Somme offensive in 1916?
Who was the commander of the American Expeditionary Forces (AEF) during World War I?
The Ottoman Empire, a key member of the Central Powers, was often referred to as what by European powers due to its declining power?
What major campaign saw Allied forces attempt to secure a sea route to Russia through the Dardanelles, resulting in a costly defeat?
Who was the German General who, alongside Paul von Hindenburg, largely directed Germany's war effort from 1916 until the end of the war, effectively forming a military dictatorship?
What specific type of poison gas, first used on a large scale by Germany at the Second Battle of Ypres in 1915, caused blindness, severe lung damage, and often death?
The 'War Guilt Clause' (Article 231) of the Treaty of Versailles specifically placed sole responsibility for starting the war on which nation?
Which battle in August 1914 saw a decisive German victory over the Russian Second Army, effectively ending Russia's offensive capabilities in East Prussia for the remainder of the war?