WW2 Timeline

  • The Invasion of Poland

    The Invasion of Poland
    In the gray morning light of September 1, 1939, the ship quietly moved the short distance from Danzig harbor to the Bend of Five Whistles, across from the small Polish military transit depot at Westerplatte.
  • Great Britain and France Declare War on Nazi Germany

    Great Britain and France Declare War on Nazi Germany
    The first casualty of that declaration was not German—but the British ocean liner Athenia, which was sunk by a German U-30 submarine that had assumed the liner was armed and belligerent. There were more than 1,100 passengers on board, 112 of whom lost their lives.
  • The Invasion of Belgium, Luxembourg, Netherlands & France

    The Invasion of Belgium, Luxembourg, Netherlands & France
    On 10 May 1940, Germany invaded the Netherlands, Belgium, Luxembourg, and France. Luxembourg was occupied that same day. The Netherlands surrendered on 15 May, Belgium on the 28th. At first, Great Britain supported the Netherlands, Belgium, and France, but it withdrew later.
  • The Battle & Great Escape at Dunkirk

    The Battle & Great Escape at Dunkirk
    Operation Dynamo, the evacuation from Dunkirk, involved the rescue of more than 338,000 British and French soldiers from the French port of Dunkirk between 26 May and 4 June 1940. The evacuation, sometimes referred to as the Miracle of Dunkirk, was a big boost for British morale. Prime Minister Winston Churchill recognised however that the greatest challenge still lay ahead, as Nazi ambitions now turned toward Britain.
  • The Battle of Britain

    The Battle of Britain
    Victory for the Luftwaffe in the air battle would have exposed Great Britain to invasion by the German army, which was then in control of the ports of France only a few miles away across the English Channel. In the event, the battle was won by the Royal Air Force (RAF) Fighter Command, whose victory not only blocked the possibility of invasion but also created the conditions for Great Britain’s survival, for the extension of the war, and for the eventual defeat of Nazi Germany.
  • Selective Service & Training Act

    Selective Service & Training Act
    On September 16, 1940, the United States instituted the Selective Training and Service Act of 1940, which required all men between the ages of 21 and 45 to register for the draft. This was the first peacetime draft in United States' history. Those who were selected from the draft lottery were required to serve at least one year in the armed forces.
  • Lend-Lease Assistance Act

    Lend-Lease Assistance Act
    In July 1940, after Britain had sustained the loss of 11 destroyers to the German Navy over a 10-day period, newly elected British Prime Minister Winston Churchill requested help from President Roosevelt. Roosevelt responded by exchanging 50 destroyers for 99-year leases on British bases in the Caribbean and Newfoundland.
  • The Attack on Pearl Harbor

    The Attack on Pearl Harbor
    Pearl Harbor attack, (December 7, 1941), surprise aerial attack on the U.S. naval base at Pearl Harbor on Oahu Island, Hawaii, by the Japanese that precipitated the entry of the United States into World War II. The strike climaxed a decade of worsening relations between the United States and Japan.
  • America Enters World War 2

    America Enters World War 2
    Though stunned by the events of December 7, Americans were also resolute. On December 8, President Roosevelt asked Congress to declare war against Japan. The declaration passed with just one dissenting vote. Three days later, Germany and Italy, allied with Japan, declared war on the United States. America was now drawn into a global war. It had allies in this fight--most importantly Great Britain and the Soviet Union.
  • Germany and Italy Declare War on the United States

    Germany and Italy Declare War on the United States
    Italian dictator, Benito Mussolini, made his declaration first - from the balcony over the Piazza Venezia in Rome - pledging the "powers of the pact of steel" were determined to win. Then Adolf Hitler made his announcement at the Reichstag in Berlin saying he had tried to avoid direct conflict with the US but, under the Tripartite Agreement signed on 27 September 1940, Germany was obliged to join with Italy to defend its ally Japan.
  • The Battle of the Coral Sea

    The Battle of the Coral Sea
    Battle of the Coral Sea, (May 4–8, 1942) World War II naval and air engagement in which a U.S. fleet turned back a Japanese invasion force that had been heading for strategic Port Moresby in New Guinea.
  • The Battle of Midway Island

    The Battle of Midway Island
    Early on the morning of June 4, aircraft from four Japanese aircraft carriers attacked and severely damaged the US base on Midway. Unbeknownst to the Japanese, the US carrier forces were just to the east of the island and ready for battle. After their initial attacks, the Japanese aircraft headed back to their carriers to rearm and refuel.
  • The Invasion of North Africa

    The Invasion of North Africa
    On 11 June 1940, Italy's Fascist dictator, Benito Mussolini, declared war on Britain and France. Seeking to expand their imperial possessions in Africa, the Italians invaded Egypt on 13 September from their colony of Libya.
  • The Invasion of Sicily & Italy

    The Invasion of Sicily & Italy
    Allied invasion of Sicily, (July 9–August 17, 1943), during World War II, the invasion of the Italian island of Sicily by Allied forces. The conquest of Sicily took a little more than a month and it led directly to the fall of Italian dictator Benito Mussolini and the surrender of the Italian government to the Allies.
  • The D-Day Invasion of France

    The D-Day Invasion of France
    The D-Day operation of June 6, 1944, brought together the land, air, and sea forces of the allied armies in what became known as the largest amphibious invasion in military history. The operation, given the codename OVERLORD, delivered five naval assault divisions to the beaches of Normandy, France. The beaches were given the code names UTAH, OMAHA, GOLD, JUNO, and SWORD. The invasion force included 7,000 ships and landing craft manned by over 195,000 naval personnel from eight allied countries.
  • Nazi Concentration Camps Discovered

    Nazi Concentration Camps Discovered
    In June 1944, as it became clear that Germany was losing the war, Nazi leader Heinrich Himmler ordered that camps be evacuated before they were reached by Allied troops, and that their prisoners be transferred to other camps.
  • The Battle of the Bugle

    The Battle of the Bugle
    Battle of the Bulge, (December 16, 1944–January 16, 1945), the last major German offensive on the Western Front during World War II—an unsuccessful attempt to push the Allies back from German home territory.
  • The Yalta Conference

    The Yalta Conference
    On February 4-11, 1945, US President Franklin Roosevelt, British Prime Minister Winston Churchill, and Soviet dictator Joseph Stalin met at the Yalta resort in then-Soviet Crimea to finalize their strategy for the remainder of World War Two and forge a post-war settlement. But within months, the Grand Alliance against Nazi Germany was breaking and the Iron Curtain descending on Europe’s eastern third, where it lasted for forty-five years.
  • V-E (Victory in Europe) Day

    V-E (Victory in Europe) Day
    On May 8, 1945, Great Britain, the United States and other Allied countries celebrate Victory in Europe Day. Cities in the U.S., U.K., and Western Europe, along with in the Soviet Union, Canada and Australia put out flags and banners, rejoicing in the defeat of the Nazi war machine during World War II.
  • The Atomic Bomb in Hiroshima

    The Atomic Bomb in Hiroshima
    This was the situation that confronted American President Harry S. Truman in the summer of 1945 when he authorized the use of the world’s first atomic bomb. In light of intelligence reports about Japan’s commitment to continue fighting, Truman and his military advisors were determined to use every weapon at their disposal in order to bring the war to an immediate end.
  • The Atomic Bomb on Nagasaki

    The Atomic Bomb on Nagasaki
    The Target Committee appointed by President Harry Truman to decide which Japanese cities would receive the Little Boy and Fat Man atomic bombings did not place Nagasaki among their top two choices. Instead they identified Kokura as the second target after Hiroshima. In Kokura, a city of 130,000 people on the island of Kyushu, the Japanese operated one of their biggest ordnance factories, manufacturing among other things chemical weapons.
  • V-J (Victory over Japan) Day

    V-J (Victory over Japan) Day
    Victory over Japan Day (V-J Day) would officially be celebrated in the United States on the day formal surrender documents were signed aboard the USS Missouri in Tokyo Bay: September 2, 1945. But as welcome as victory over Japan was, the day was bittersweet in light of the war’s destructiveness. More than 400,000 Americans—and an estimated 65 million people worldwide—had died in the conflict.