WW2 Timeline

Germany quickly overran much of Europe and was victorious for more than two years by relying on a new military tactic called the "Blitzkrieg" (lightning war). Blitzkrieg tactics required the concentration of offensive weapons (such as tanks, planes, and artillery) along a narrow front. https://www.ushmm.org/wlc/en/article.php?ModuleId=10005437

German and British air forces clashed in the skies over the United Kingdom, locked in the largest sustained bombing campaign to that date. A significant turning point of World War II, the Battle of Britain ended when Germany’s Luftwaffe failed to gain air superiority over the Royal Air Force despite months of targeting Britain’s air bases, military posts and, ultimately, its civilian population.
http://www.history.com/topics/world-war-ii/battle-of-britain

The Battle of France began in 1940 and consisted of two operations. The first one was Case Yellow or Fall Gelb a Germany cut off allied units which had advanced into the country of Belgium at the Ardennes. The French collapse was as sudden as it was unexpected. It ripped up the balance of power in Europe, and overnight left the strategic assumptions on which Britain had planned to fight Hitler completely obsolete.
http://www.bbc.co.uk/history/worldwars/wwtwo/fall_france_01.shtml

The Japanese attack had several major aims. First, it intended to destroy important American fleet units, thereby preventing the Pacific Fleet from interfering with Japanese conquest of the Dutch East Indies and Malaya and to enable Japan to conquer Southeast Asia without interference. The long-term effect of Pearl Harbor was that it brought in the US to the war.
https://www.enotes.com/homework-help/what-cause-and-effect-pearl-harbor-29033

The objectives of Operation Barbarossa were quite unrealistic from the beginning. The start of the war was the most favorable for Germans as they took Russians by surprise and destroyed a large part of the Soviet army in the first weeks. The outcome was that the Soviets defeated the Germans (after significant losses) and ruled a divided Germany with a puppet government until the early 1990s when the Soviet Union fell.
http://www.u-s-history.com/pages/h1761.html

The Battle of Midway was a turning point in the Pacific War. Before the Battle of the Coral Sea on 7-8 May 1942, the Imperial Navy of Japan had swept aside all of its enemies from the Pacific and Indian oceans. ... Yamamoto's plan was to attack and then assault the two islands that make up the Midway atoll. Fought just a month after the Battle of the Coral Sea, Midway was the turning point of the Pacific Campaign. https://warontherocks.com/2013/09/the-importance-of-the-battle-of-midway/

With North Africa secured and Sicily the stepping stone to Italy conquered, the Allied forces launched their invasion of Italy on 3 September 1943. It began with British forces skipping across the Strait of Messina to Calabria. Troops and vehicles being landed under shell fire during the invasion of mainland Italy at Salerno, September 1943. Rome fell in June 1944. http://www.history.com/this-day-in-history/allies-invade-italian-mainland

rom 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. After a month of fighting, the Germans blow up the Great Synagogue in Warsaw, signaling the end of the uprising and the destruction of the ghetto.
http://www.history.com/topics/world-war-ii/warsaw-ghetto-uprising

June 6, 1944, the day the Allied powers crossed the English Channel and landed on the beaches of Normandy, France, beginning the liberation of Western Europe from Nazi control during World War II. The northern part of France would be freed and the invasion force would be preparing to enter Germany, where they would meet up with Soviet forces moving in from the east. “By the end of June 1944, about a million Allied troops had reached France.”
http://www.history.com/this-day-in-history/d-day

The Battle of the Bulge started on December 16th 1944.The attack is strictly known as the Ardennes Offensive but because the initial attack by the Germans created a bulge in the Allied front line. The Battle of the Bulge is a momentous battle of World War II, not just because it brought about the end of the German army and the Nazi reign, but also because of the profound effect it had on soldiers who fought in the icy Ardennes. http://www.history.com/this-day-in-history/battle-of-the-bulge

It was the first major battle of World War II to take place on Japanese homeland. The island of Iwo Jima was a strategic location because the US needed a place for fighter planes and bombers to land and take off when attacking Japan. The Battle of Iwo Jima was a major battle in which the United States Marine Corps landed on and eventually captured the island of Iwo Jima from the Imperial Japanese Army during World War II. http://www.ducksters.com/history/world_war_ii/battle_of_iwo_jima.php

Was the public holiday celebrated on 8 May 1945 to mark the formal acceptance by the Allies of World War II of Nazi Germany's unconditional surrender of its armed forces. Remained in the memory of all those who witnessed it.It meant an end to nearly six years of a war that had cost the lives of millions;had destroyed homes, families, and cities; and had brought huge suffering and privations to the populations of entire countries.
https://www.iwm.org.uk/history/what-you-need-to-know-about-ve-day

On August 14, 1945, it was announced that Japan had surrendered unconditionally to the Allies, effectively ending World War II. Since then, both August 14 and August 15 have been known as “Victoryover Japan Day,” or simply “V-J Day.” The term has also been used for September 2, 1945, when Japan's formal surrender took place aboard the U.S.S. Missouri, anchored in Tokyo Bay.
http://www.history.com/topics/world-war-ii/v-j-day

The capture of Okinawa was part of a three-point plan the Americans had for winning the war in the Far East. Okinawa was to prove a bloody battle even by the standards of the war in the Far East but it was to be one of the major battles of World War Two.It also resulted in the largest casualties with over 100,000 Japanese casualties and 50,000 casualties for the Allies.
http://www.historylearningsite.co.uk/world-war-two/the-pacific-war-1941-to-1945/the-battle-of-okinawa/

President Harry S. Truman, warned that any attempt to invade Japan would result in horrific American casualties, ordered that the new weapon be used to bring the war to a speedy end. On August 6, 1945, dropped a five-ton bomb over the Japanese city of Hiroshima. The two atomic bombs dropped on Japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today.
https://www.cnn.com/2016/05/27/politics/hiroshima-obama-explainer/index.html