The invasion of Poland by Germany on September 1, 1939, marked the beginning of World War II, as it led Britain and France to declare war on Germany.

Germany utilized a new form of warfare called blitzkrieg, involving rapid and overwhelming attacks by infantry, tanks, and aircraft to quickly overwhelm Polish defenses.

On September 17, 1939, the Soviet Union invaded Poland from the east, as per the secret Molotov-Ribbentrop Pact, leading to the country's partition between Germany and the Soviet Union.

Japan's attack on Pearl Harbor on December 7, 1941, propelled the United States into World War II and drastically affected 120,000 Japanese Americans.

The attack heightened racial prejudices and increased fears of sabotage and espionage against Japanese Americans among government officials, the military, and the public.

In February 1942, President Franklin D. Roosevelt issued Executive Order 9066, which empowered the Secretary of War to create Military Areas and to relocate individuals from those zones who could pose a threat to the war effort.

The 7 December 1941 Japanese raid on Pearl Harbor was one of the great defining moments in history.

A single carefully-planned and well-executed stroke removed the United States Navy's battleship force as a possible threat to the Japanese Empire's southward expansion.

Eighteen months earlier, President Franklin D. Roosevelt had transferred the United States Fleet to Pearl Harbor as a presumed deterrent to Japanese aggression.

The Japanese military, deeply engaged in the seemingly endless war it had started against China in mid-1937, badly needed oil and other raw materials.

On December 13, 1937, the Japanese army captured China’s capital, Nanjing, killing approximately 300,000 civilians and many unarmed Chinese soldiers over two months.

The Japanese overran the city, they hunted down and killed suspected Chinese soldiers, massacred families living outside the Safety Zone, and raped tens of thousands of women. 

The violence ended in February 1938 when a new Chinese government, influenced by Japan, was established. The chaos and mass graves make it difficult to count the casualties.

The bombing of the Japanese city of Nagasaki with the Fat Man plutonium bomb device on August 9, 1945, caused terrible human devastation and helped end World War II.

At 11:02 a.m., at an altitude of 1,650 feet, Fat Man (right) exploded over Nagasaki.

Nagasaki was an industrial center and major port on the western coast of Kyushu. 

On August 6, 1945, the United States dropped an atomic bomb on Hiroshima

The bomb "Little Boy" killed around 70,000–80,000 people instantly

The survivors, known as "Hibakusha," faced lifelong health issues

On June 6, 1944, the Allied forces launched Operation Overlord, landing on Normandy’s beaches.

The invasion marked the beginning of the liberation of Western Europe from Nazi occupation.

D-Day is seen as a turning point in WWII, leading to the eventual defeat of Nazi Germany.

Fought from August 23, 1942, to February 2, 1943, this battle marked the turning of the tide on the Eastern Front.

German forces were decisively defeated, marking the beginning of the Soviet counter-offensive.

The defeat at Stalingrad was a major psychological blow to Nazi Germany.

The Battle of Berlin (April-May 1945) was one of the final major battles of World War II in Europe.

The fall of Berlin resulted in the death of Adolf Hitler

The fall of Berlin effectively ended World War II in Europe

The Nazi party was a far right political movement led by Adolf Hitler

The Nazis initiated world war 11 invading Poland

The Nazi collapsed in 1945 ended the regime

Adolf Hitler became the leader of the Nazi party in the 1920s .

Hitler aggressive expansionist policies led to the outbreak of World War II in 1939.

As Allied forces closed in on Berlin in April 1945, Hitler committed suicide in his bunker

The Nazi regime systematically targeted Jews enacting discriminatory laws.

Despite immense persecution, Jewish resistance took various forms, including armed uprisings

As Allied forces liberated concentration camps in 1944–1945, survivors faced immense challenges

Bat bombs were an experimental U.S. weapon during World War II.

Designed to release thousands of bats carrying small incendiary bombs over Japanese cities.

The bats were housed in a bomb-like canister, released mid-air, and expected to roost in buildings before igniting fires.

Project Habakkuk was a British World War II plan to build a massive aircraft carrier out of pykrete.

A small-scale prototype was built in Canada’s Patricia Lake in 1943.

The project was abandoned in 1944 due to high costs and advancements in traditional naval and air warfare.

The Great Panjandrum was a British experimental weapon developed during World War II.

Trials were conducted on the beaches of England, but the weapon proved highly unpredictable.

Due to its instability and failure in tests, the Panjandrum was abandoned before D-Day

Anne frank was a Jewish teenager who wrote a diary while hiding from the Nazi

From 1942 to 1944 Anne and her family hid in a concealed apartment

Anne sadly died in a concentration camp in the early 1945

The 6888 was postal battalion of all black female

It got its named for it hard work and effort during the war

The group got awarded the congressional gold medal

The battle of create ran from may 20- June 1 1941

Despite the resistance the British and Australian forces won

The battle marked the first time in history that parachute troops were used for major strategic

Operation torch was the major allied amphibious invasion of world war II

The operation aimed to weakens the axis control

It resulted in the surrender of Vichy French forces

The battle of Monte casino from January 17 to may 18 1944

The battle saw intense fighting including the controversial bombing

After months of brutal combat and high casualties on both sides the Poland forces successfully captured the abbey on may 18