World War 2 Facts for Kids

World War II was one of the largest and most destructive conflicts in the history of mankind. Spanning six years from 1939 to 1945, this devastating global conflict claimed the lives of between 50 and 85 million people. Here are a few key facts about the war that every child should know.
When Did World War II Start?
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The war began on September 1st, 1939, when Nazi Germany invaded Poland. This event marked the first military action of what would become a worldwide conflict between two major powers: The Allied Powers (consisting mainly of the United Kingdom, United States, Soviet Union, and France) and the Axis Powers (led by Nazi Germany).
Who Fought in WW2?
World War II was one of the deadliest and most widespread wars in history, involving nearly every nation on Earth. Millions of men and women fought for their countries, with countless lives lost in battle. But who were these brave people that gave so much for their nations? Here’s a look at those who fought in World War II.
The Allies
The Allied Powers were the countries that opposed Germany, Japan, and Italy during World War II. The core members of the Allies were France, the United States, and Russia. Other significant Allied countries included China, Canada, Australia, India, Poland, Belgium, and Norway. All told, more than 50 nations fought alongside the Allies during World War II.
The Axis Powers
The Axis Powers were the countries led by Germany, Japan, and Italy during World War II. Besides those three countries, other significant Axis powers included Romania, Bulgaria, Hungary, Croatia, Slovakia, and Thailand. Altogether there were about 30 nations that fought alongside the Axis Powers during World War II.

The Home Fronts
In addition to the soldiers that fought in battles abroad, millions of citizens on both sides contributed to their countries’ war efforts from home. Civilians built weapons and supplies, volunteered as nurses and doctors, aided refugees, and even took up arms themselves. Women were also important in the war effort as pilots, factory workers, nurses, and ambulance drivers.
WW2 was an unprecedented conflict that required enormous contributions from every nation involved. Men and women worldwide put their lives on the line to ensure their country’s victory. Their courage and sacrifice will never be forgotten.
How Did World War Two Start?
As the world marks the 75th anniversary of the end of World War II, it’s important to understand the events that led to its start. Over the course of six years, WWII claimed millions of lives and changed the landscape of global politics forever. Here’s how it all began.
Rise of Fascism and Anti-Semitism
One of the major forces leading up to the war was the rise of fascism and anti-Semitism in Europe. After World War I, extreme right-wing groups began to gain power in Germany, Italy, and other nations. These groups glorified militarism and adopted racist ideologies, especially targeting Jewish people. This climate of hate eventually helped pave the way for war.
Invasion of Poland
On September 1, 1939, Germany invaded Poland without warning, which marked the official start of World War II. The two countries could not stop Hitler’s aggression despite diplomatic efforts from Britain and France. Days later, Britain and France declared war on Germany in response to their invasion. This marked the beginning of a long and devastating conflict.

Formation of Alliances
In the following months, other countries officially joined the war as part of different alliances. Nazi Germany formed an alliance with Italy and Japan known as the Axis Powers. Britain, France, China, and other countries formed an opposing coalition known as the Allied Powers. This further divided up Europe and Asia into two factions: those who supported Nazi Germany’s ideology and those who did not.
Final Outcome
By 1945, most of Europe had been overrun by Axis forces, and millions of people were dead. However, this changed when Allied forces launched a surprise attack on Germany known as Operation Overlord. After years of fighting, the Allies defeated Germany and Japan in 1945, ending World War 2.
Though it was one of the deadliest conflicts in history, it also brought about sweeping changes in international politics. It ushered in a new era of hope for many people around the world.
How did World War 2 End?
World War II ended on May 8th, 1945, when Germany signed the Instrument of Surrender. This agreement effectively marked the end of the war, though minor hostilities continued into the following days and weeks.
The surrender was made possible by a massive Allied campaign across Europe involving extensive bombing, invasion, and coordination on land, sea, and air. This incredible effort eventually led to the unconditional capitulation of Germany and its allies after several years of brutal fighting.
The Nazi regime was formally dissolved with the proclamation of Victory in Europe (V-E) Day, celebrated worldwide on May 8th1945 and throughout the month with parades and ceremonies. Though much of Europe lay in ruins from the conflict, there was immense relief that the long ordeal had finally ended.
In the aftermath of WWII, new institutions, such as the United Nations, were established to ensure peace. Today, we are responsible for remembering this dark period in history and honoring those who paid the ultimate price to bring about lasting change.
The Holocaust
The Holocaust is one of the most horrific events in human history. Between 1941 and 1945, millions of people, mostly Jews, were systematically persecuted and murdered by the Nazis in an attempt to establish a “pure” Aryan race. It was a genocide—the systematic destruction of an entire people. The victims of the Holocaust experienced unimaginable suffering, brutality, and death.
What Happened in the Holocaust?
In the early 1930s, Nazi Germany began implementing policies that stripped Jews of their rights and denied them access to essential services such as education and healthcare. In 1941, these policies escalated into mass deportations that sent Jews to concentration camps, where they were forced to work under inhumane conditions, and many died from starvation, disease, or exhaustion. Others were killed in gas chambers. By the end of World War II in 1945, six million Jews had been murdered in the Holocaust.
Who Was Responsible for the Holocaust?
Adolf Hitler was the leader of Nazi Germany and was directly responsible for ordering the persecution and mass murder of Jews. However, he did not act alone. He was supported by top Nazi officials such as Heinrich Himmler and Joseph Goebbels. He was aided by ordinary citizens and threatened with repercussions if they failed to comply with orders. Unfortunately, these policies were also supported by some members of the international community who chose not to intervene despite knowing what was happening.
Legacy of the Holocaust
Though we can never fully comprehend the scale of this tragedy, we must remember those who lost their lives and honor their memory. To ensure that something like this never happens again, we must continue to educate future generations about the dangers of prejudice and racism. We must accept everyone, regardless of race or religion, and stand up against those who seek to harm others by any means necessary.
Battles of World War II
During World War II, the Allies and Axis powers clashed in several significant battles that shaped the course of History. Let’s take a look at four key battles:
The Battle of Britain
This was a series of air raids initiated by Nazi Germany against Britain in 1940-41. It was the first major battle to take place entirely in the air and saw the RAF (Royal Air Force) fend off waves of German bombers with the help of new technological innovations such as radar. The victory in this battle marked a crucial turning point in the war and was decisive for the Allies.

The Battle of Stalingrad
This complex battle occurred between 1942-43 and is considered one of the bloodiest in modern history. It involved ground forces from both sides clashing in Stalingrad (now Volgograd) and witnessed several devastating casualties. Ultimately, the Soviet Red Army emerged victorious and prevented an Axis advance further east.
The Battle of Midway
This engagement was fought between June 3-7, 1942, and pitted Allied forces against Japanese navy forces near the strategic island of Midway. After days of heavy fighting, the Japanese were forced to retreat because their losses were too great to recover from. This battle was widely seen as a major victory for the Allies that helped swing the tide of the war in their favor.

The Battle of the Atlantic
From 1939-45, this was the longest continuous battle of World War II between German submarines and Allied ships. At sea, there were fierce clashes between warships and U-boats which saw thousands of lives lost and tons of cargo sunk. However, Allied forces eventually gained the upper hand thanks to advances in radar technology, anti-submarine warfare practices, and air cover provided by land-based aircraft.
These battles shed light on some key events that shaped World War II and its outcome. Although they are distant memories, they will remain part of our shared history forever.
Conclusion
World War II was one of the greatest conflicts in history, with lasting effects that can still be felt today. Everyone should learn about this historical period to understand why certain events happened and how they shaped our world into what it is today.
Suggested Activities for Teachers
You can do many activities to learn about World War II. Here are a few ideas:
- Timeline Activity: Create a timeline of the events leading up to and during World War II. Have students work in groups to research and present information about specific events, such as the invasion of Poland, the bombing of Pearl Harbor, or the Battle of Stalingrad.
- Primary Source Analysis: Have students analyze primary sources, such as photographs, letters, or newspaper articles, from the period. They can use these sources to gain insight into the experiences and perspectives of people during the war.
- Map Activity: Provide students with a map of Europe and have them label the countries involved in World War II. They can also use the map to track the movement of troops and key battles.
- Role-playing Activity: Assign students different roles, such as a soldier, a civilian, or a government leader, and have them act out different scenarios from World War II. This can help them understand the different perspectives and decisions made during the war.
- Oral History Project: Have students interview someone who lived through World War II, such as a grandparent or neighbor. They can record the interview and use it as a basis for a presentation or essay.
- Research Project: Assign students a research project on a specific aspect of World War II, such as the Holocaust, the Pacific Theater, or the home front. This can help them develop their research skills while deepening their understanding of the war.
- Literature Circles: Have students read books or articles about World War II and then discuss them in small groups. This can help them develop critical thinking skills while exploring different perspectives on the war.
These are just a few ideas, but you could do many other activities to teach your class about World War II. Choosing activities that will engage your students and help them develop a deeper understanding of this important historical event is important.