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German Blitzkrieg
A German term for “lightning war,” blitzkrieg is a military tactic designed to create disorganization among enemy forces through the use of mobile forces and locally concentrated firepower. Its successful execution results in short military campaigns, which preserves human lives and limits the expenditure of artillery. German forces tried out the blitzkrieg in Poland in 1939 before successfully employing the tactic with invasions of Belgium, the Netherlands and France in 1940. -
Germany invaded France
The Battle of France, also known as the Fall of France, was the German invasion of France and the Low Countries in 1940 during the Second World War. In six weeks from 10 May 1940, German forces defeated Allied forces by mobile operations and conquered France, Belgium, Luxembourg and the Netherlands, bringing land operations on the Western Front to an end until 6 June 1944. -
Germany bombs London
On this day in 1940, 300 German bombers raid London, in the first of 57 consecutive nights of bombing. This bombing “blitzkrieg” lightning war would continue until May 1941. After the successful occupation of France, it was only a matter of time before the Germans turned their sights across the Channel to England. -
Lend Lease
Proposed in late 1940 and passed in March 1941, the Lend-Lease Act was the principal means for providing U.S. military aid to foreign nations during World War II. It authorized the president to transfer arms or any other defense materials for which Congress appropriated money to the government of any country whose defense the President deems vital to the defense of the United States. -
The United States was victorious over Japan
Six months after the attack on Pearl Harbor, the United States defeated Japan in one of the most decisive naval battles of World War II. Thanks in part to major advances in code breaking, the United States was able to pre empt and counter Japan’s planned ambush of its few remaining aircraft carriers, inflicting permanent damage on the Japanese Navy. An important turning point in the Pacific campaign, the victory allowed the United States to move into an offensive position. -
Germany invades the Soviet Union
The destruction of the Soviet Union by military force, the permanent elimination of the perceived Communist threat to Germany, and the seizure of prime land within Soviet borders for long-term German settlement had been core policy of the Nazi movement since the 1920s. -
Operation Barbarossa
Adolf Hitler launched his armies eastward in a massive invasion of the Soviet Union three great army groups with over three million German soldiers, 150 divisions, and three thousand tanks smashed across the frontier into Soviet territory. The invasion covered a front from the North Cape to the Black Sea, a distance of two thousand miles. By this point German combat effectiveness had reached its apogee in training. Russia represented the finest army to fight in the twentieth century. -
Japan bombs Pearl Harbor
Just before 8 a.m. on December 7, 1941, hundreds of Japanese fighter planes attacked the American naval base at Pearl Harbor near Honolulu, Hawaii. The barrage lasted just two hours, but it was devastating: The Japanese managed to destroy nearly 20 American naval vessels, including eight enormous battleships, and more than 300 airplanes. More than 2,000 Americans soldiers and sailors died in the attack, and another 1,000 were wounded. -
Germany Declares war on U.S.
On this day, Adolf Hitler declares war on the United States, bringing America, which had been neutral, into the European conflict.
The bombing of Pearl Harbor surprised even Germany. Although Hitler had made an oral agreement with his Axis partner Japan that Germany would join a war against the United States, he was uncertain as to how the war would be engaged. Japan’s attack on Pearl Harbor answered that question. -
Bataan Death March
After the April 9, 1942, U.S. surrender of the Bataan Peninsula on the main Philippine island of Luzon to the Japanese during World War II (1939-45), the approximately 75,000 Filipino and American troops on Bataan were forced to make an arduous 65-mile march to prison camps. The marchers made the trek in intense heat and were subjected to harsh treatment by Japanese guards. Thousands perished in what became known as the Bataan Death March. -
Warsaw Ghetto uprising
From April 19 to May 16, 1943, during World War II (1939-45), residents of the Jewish ghetto in Nazi-occupied Warsaw, Poland, staged an armed revolt against deportations to extermination camps. The Warsaw ghetto uprising inspired other revolts in extermination camps and ghettos throughout German-occupied Eastern Europe. -
Liberation of concentration camps
Soviet soldiers were the first to liberate concentration camp prisoners in the final stages of the war. On July 23, 1944, they entered the Majdanek camp in Poland, and later overran several other killing centers. On January 27, 1945, they entered Auschwitz and there found hundreds of sick and exhausted prisoners. -
Battle of the Bulge
In December 1944, Adolph Hitler attempted to split the Allied armies in northwest Europe by means of a surprise blitzkrieg thrust through the Ardennes to Antwerp. Caught off-guard, American units fought desperate battles to stem the German advance at St.-Vith, Elsenborn Ridge, Houffalize and Bastogne. As the Germans drove deeper into the Ardennes in an attempt to secure vital bridgeheads, the Allied line took on the appearance of a large bulge, giving rise to the battle’s name. -
Battle of Iwo Jima
The American amphibious invasion of Iwo Jima during World War II stemmed from the need for a base near the Japanese coast. Following elaborate preparatory air and naval bombardment, three U.S. marine divisions landed on the island in February 1945. Iwo Jima was defended by roughly 23,000 Japanese army and navy troops, who fought from an elaborate network of caves, dugouts, tunnels and underground installations. -
The United States drops two atomic bombs on Japan
The United States becomes the first and only nation to use atomic weaponry during wartime when it drops an atomic bomb on the Japanese city of Hiroshima. Though the dropping of the atomic bomb on Japan marked the end of World War II, many historians argue that it also ignited the Cold War.Since 1940, the United States had been working on developing an atomic weapon, after having been warned by Albert Einstein that Nazi Germany was already conducting research into nuclear weapons. -
Liberation of Western Europe
A great sense of expectancy dominated Europe in the spring of 1944. Resistance groups in German-occupied countries across the continent burned with impatience. In many cases they wanted to take liberation through into revolution and settle accounts with those who had collaborated or profited. In some cases, especially in Poland, hope was overshadowed by foreboding at what a Soviet occupation would mean.
