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By Mdottgzz
  • Assassination of Archduke Franz Ferdinand

    Assassination of Archduke Franz Ferdinand

    The heir to the Austro-Hungarian Empire was assassinated in Sarajevo by a Serbian nationalist. This triggered the beginning of the war.
  • Austria-Hungary Declares War on Serbia

    Austria-Hungary Declares War on Serbia

    This marked the official start of World War I. Military alliances caused many other countries to join the conflict.
  • Germany Invades Belgium

    Germany Invades Belgium

    Germany launched the Schlieffen Plan by attacking France through Belgium. This led the United Kingdom to enter the war.
  • Italy Joins the Allie

    Italy Joins the Allie

    Italy switched sides and joined the Allies in exchange for promised territory.
  • Battle of Verdun and the Somme

    Battle of Verdun and the Somme

    Two of the longest and deadliest battles of the war. Millions died in brutal trench warfare.
  • Russian Revolution and Withdrawal from the War

    Russian Revolution and Withdrawal from the War

    After the Bolshevik Revolution, Russia signed a peace treaty with Germany in 1918 and exited the war.
  • United States Enters the War

    United States Enters the War

    The U.S. declared war on Germany after repeated submarine attacks on its ships. American support helped turn the tide.
  • Armistice Signed

    Armistice Signed

    Germany signed the armistice in Companie. Fighting stopped at 11 a.m. on the 11th day of the 11th month.
  • Treaty of Versailles

    Treaty of Versailles

    The treaty officially ended the war. It imposed harsh penalties and territorial losses on Germany.
  • Germany Invades Poland

    Germany Invades Poland

    Nazi Germany invades Poland, marking the official start of World War II. This causes Britain and France to declare war on Germany.
  • D-Day (Allied Invasion of Normandy)

    D-Day (Allied Invasion of Normandy)

    Allied forces land on the beaches of Normandy, France, in the largest amphibious invasion in history, beginning the liberation of Western Europe.
  • Britain and France Declare War on Germany

    Britain and France Declare War on Germany

    In response to Germany’s invasion of Poland, the United Kingdom and France declare war, beginning the conflict in Western Europe.
  • Period: to

    Battle of Britain

    The German Luftwaffe attacks the UK in an attempt to gain air superiority, but the Royal Air Force successfully defends Britain.
  • Germany Invades France

    Germany Invades France

    Germany launches an invasion of France through the Ardennes forest. Paris falls within weeks, and France surrenders in June.º
  • Operation Barbarossa (Invasion of the Soviet Union)

    Operation Barbarossa (Invasion of the Soviet Union)

    Hitler breaks the Nazi-Soviet Pact and invades the Soviet Union, opening the Eastern Front.
  • Attack on Pearl Harbor

    Attack on Pearl Harbor

    Japan attacks the U.S. naval base at Pearl Harbor, prompting the United States to enter the war.
  • Liberation of Paris

    Liberation of Paris

    After months of fighting, Allied forces and the French Resistance free Paris from German occupation.
  • Atomic Bombs on Hiroshima and Nagasaki

    Atomic Bombs on Hiroshima and Nagasaki

    The U.S. drops atomic bombs on the Japanese cities of Hiroshima and Nagasaki, leading to massive destruction and civilian casualties.
  • Japan Surrenders (V-J Day)

    Japan Surrenders (V-J Day)

    Japan announces its surrender, and the war officially ends. The formal signing occurs on September 2 aboard the USS Missouri.