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The Invasion of Poland (Blitzkrieg)
The Invasion of Poland, also known as the September Campaign, Polish Campaign, War of Poland of 1939, and Polish Defensive War of 1939, was a joint attack on the Republic of Poland by Nazi Germany, the Slovak Republic, and the Soviet Union; which marked the beginning of World War II. -
Great Britain & France Declare War on Nazi Germany
Britain and France declared war on Germany in September 1939 in response to the invasion of Poland. The period between September 1939 and April 1940 is often called the 'Phoney War' because, although war raged at sea, very little happened in Western Europe during this time. -
The Invasion of Belgium, Luxembourg, the Netherlands & France (Blitzkrieg).
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 of Dunkirk was fought around the French port of Dunkirk during the Second World War, between the Allies and Nazi Germany. -
The Battle of Britain
The Battle of Britain was a military campaign of the Second World War, in which the Royal Air Force and the Fleet Air Arm of the Royal Navy defended the United Kingdom against large-scale attacks by Nazi Germany's air force, the Luftwaffe. It was the first major military campaign fought entirely by air forces. -
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. -
Lend-Lease Assistance Act
Passed on March 11, 1941, this act set up a system that would allow the United States to lend or lease war supplies to any nation deemed "vital to the defense of the United States." -
The Attack on Pearl Harbor
The attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service upon the United States against the American naval base at Pearl Harbor in Honolulu, Hawaii, just before 8:00 a.m. on Sunday, December 7, 1941. -
America Enters World War II
On December 7, 1941, Japanese carrier planes attacked the American fleet at Pearl Harbor, Hawaii, knocking out over 200 planes and sinking or damaging eight battleships, the pride of the US Pacific fleet. The following day, Congress declared war on Imperial Japan. -
Germany & Italy Declare War on the United States
On December 11, 1941, Italy declared war on the United States in response to the latter's declaration of war upon the Empire of Japan following the attack on Pearl Harbor four days earlier. Germany also declared war on the U.S. the same day. -
The Battle of the Coral Sea
The Battle of the Coral Sea, from 4 to 8 May 1942, was a major naval battle between the Imperial Japanese Navy and naval and air forces of the United States and Australia. -
The Battle of Midway Island
The Battle of Midway (turning point) was a major naval battle in the Pacific Theater of World War II that took place 4–7 June 1942, six months after the Empire of Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea. -
The Invasion of North Africa
Operation Torch was an Allied invasion of French North Africa during the Second World War. Torch was a compromise operation that met the British objective of securing victory in North Africa. -
The Invasion of Sicily & Italy
The Allied invasion of Sicily, also known as the Battle of Sicily and Operation Husky, was a major campaign of World War II in which the Allied forces invaded the island of Sicily in July 1943 and took it from the Axis powers. -
The D-Day Invasion of France
The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Code-named Operation Neptune and often referred to as D-Day, it is the largest seaborne invasion in history. -
Nazi Concentration Camps Discovered
Majdanek was a Nazi concentration and extermination camp built and operated by the SS on the outskirts of the city of Lublin during the German occupation of Poland in World War II. It had seven gas chambers, two wooden gallows, and some 227 structures in all, placing it among the largest of Nazi concentration camps. After the camp's liberation in July 1944, the site was formally protected by the Soviet Union. -
The Battle of the Bulge
The Battle of the Bulge, also known as the Ardennes Offensive, was a major German offensive campaign on the Western Front during World War II which took place from 16 December 1944 to 25 January 1945. It was launched through the densely forested Ardennes region between Belgium and Luxembourg. -
The Yalta Conference
The Yalta Conference, held 4–11 February 1945, was the World War II meeting of the heads of government of the United States, the United Kingdom and the Soviet Union to discuss the postwar reorganization of Germany and Europe. -
V-E (Victory in Europe) Day
Victory in Europe Day is the day celebrating the formal acceptance by the Allies of World War II of Germany's unconditional surrender of its armed forces on Tuesday, 8 May 1945; it marked the official end of World War II in Europe in the Eastern Front, with the last known shots fired on 11 May. -
The Atomic Bombs on Hiroshima
In the early morning hours of August 6, 1945, a B-29 bomber named Enola Gay took off from the island of Tinian and headed north by northwest toward Japan. The bomber's primary target was the city of Hiroshima, located on the deltas of southwestern Honshu Island facing the Inland Sea. Hiroshima had a civilian population of almost 300,000 and was an important military center, containing about 43,000 soldiers. -
The Atomic Bombs on Nagasaki
The plutonium implosion bomb, nicknamed "Fat Man," was rushed into readiness to take advantage of this window. No further orders were required for the attack. Truman's order of July 25th had authorized the dropping of additional bombs as soon as they were ready. Nagasaki was bombed towards the afternoon. -
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 (and the end of the war) over Japan was, the day was bittersweet in light of the war's destructiveness.