It is the largest armed conflict humanity has known.

A deadly war that involved tens of millions of fighters around the world.

Let's retrace the major events of World War II on a map.

At the end of World War I, Germany and its allies are defeated and held solely responsible for the war.

With heavy sanctions imposed, the Austro-Hungarian and Ottoman empires are dismantled.

While Germany has to repay what many consider an unreasonable debt.

Its colonies and some of its territories are ceded to the victors, and to Poland which is recreated.

These sanctions are seen as humiliation by the German people.

Financial instability

German economy is weakened by excessive debt and suffers from hyperinflation.

National mints try to address this by printing banknotes, causing a devaluation of its currency.

Between 1914 and November 1923, the mark's value grew by 1,000 billion.

The following year, radical measures were taken to halt inflation and stabilize and revive the economy.

But in 1929 the Wall Street crash in New York led to the most devastating economic crisis of the 20th century.

Its impact is felt worldwide.

With Germany not spared either, causing the unemployment rate to explode.

Rise of Nazism and Fascism

Severely weakened, Germany sees a rise of nationalism in 1933

That allowed the Nazi party to rise to power with Adolf Hitler.

Despite the strict conditions imposed upon Germany after WWI.

The newly established totalitarian regime resets the country and restores military service.

The country also begins an aggressive foreign policy with the dream of uniting all German-speaking people.

Italy, despite its victory with the Allies, is frustrated by the amount of territory it gained after WWI.

Since 1922, the country has been ruled by Benito Mussolini's dictatorial fascist party.

Italy begins a colonial policy by seizing Ethiopia and prepares an invasion of Albania.

Events before the war

In Spain, begins three years of civil war against the Republican government who're supported

by the USSR and the International Brigades, and the nationalist camp led by Francisco

Franco, and aided by Italy and Germany.

The two countries took the opportunity to test their armies and to get closer diplomatically.

In Asia, Japan continues its expansionist policy.

The country uses China's civil war to invade its territories.

The Japanese army uses chemical and biological weapons and massacres populations

German annexation

Germany is now powerful enough to expand territorially.

It first annexed Austria with support from the local Nazi party.

Next, the west of Czechoslovakia was invaded.

The Slovak Republic becomes a German satellite state while Hungary grows closer diplomatically.

After the occupation of a part of Lithuania,

Germany signs with the USSR a non-aggression pact and a plan to carve up Europe.

It then attacks Poland, which provokes the United Kingdom and France to declare war,

marking the beginning of World War II.

Although German forces are concentrated in the East, Allied troops do not take initiative in the West.

Instead, France and the United Kingdom try to cut the strategic iron ore route that passes

through Norway and supplies the German military industry.

Germany reacts by invading Denmark and Norway.

Within days, the country captures Luxembourg, the Netherlands and Belgium.

Hitler’s updated military strategy is called Blitzkrieg, which surprises opposition defenses

with rapid, high-intensity attacks in a concentrated area.

British forces retreat in the face of German military prowess, and the German army bears down on Paris.

The French army is defeated and an armistice is signed.

Germany occupies France's north and west.

leaving its other territory and colonies under the control of the newly formed government.

Germany thus has indirect control of the French colonies without having to send an army there.

However, parts of the French colonies and Belgian Congo remain in the Allies' camp.

In London, which already hosts several governments in exile, General Charles de Gaulle creates

Free France which continues to fight Nazi Germany.

Brazzaville is its capital.

Internationalization

Pursuant to agreements signed with Germany,

the Soviet Union seizes the Baltic states and a part of Romania.

Germany, Italy and Japan form the Axis Powers.

All British territories and colonies, except Ireland, enter the war.

In Africa, fighting begins between the Italian colonies and Allied forces.

While in Europe, despite massive aerial bombing of British cities, Germany fails to take over.

Hitler then changes his plans: he now wants to invade the USSR.

But the plan is delayed by Italy, that fails to invade Greece and is forced to retreat by Allied forces.

After Hungary, Romania and Bulgaria joined the Axis forces,

the German armies head south to occupy Yugoslavia and Greece.

Resistance

Everywhere in Europe, the resistance is organized in different forms.

People organize strikes, demonstrations or protect wanted persons.

Some groups spy for the Allies, sabotage or print resistance newspapers.

In Eastern Europe, guerilla forces undermine the Axis armies.

In Yugoslavia and Greece, communist resistance groups and royalist groups confront each other.

Germany isn’t spared the anti-Nazi resistance, with some attempts to assassinate Hitler … which fail.

Operation Barbarossa

On June 22, Axis forces launched - on some counts - the largest military operation in history to attack the USSR.

Which now passes de facto into the camp of Allied forces.

The bulk of the German troops, well equipped and motorized, rush to the east.

To support the Soviets, the Allies occupy Iran, opening up a supply route through the Caucasus.

German armies arrive in Leningrad and begin a siege of the city that lasted 872 days

and cause more than 1 million civilian deaths.

Further south, German troops were stopped at Moscow gates, where they suffered a harsh and deadly winter.

Behind the front lines, the SS massacred the Slavic and Jewish populations.

Pacific front

In Asia, Japan occupies French Indochina.

To counter its expansionist policy, the United States imposes upon it an embargo on oil and steel.

In response, the Japanese attack the United States at Pearl Harbor.

A massive aerial bombing damages a large part of the US naval fleet.

The United States enters the war on the Allied side.

At first, they concentrate their forces on the Pacific front.

The country also provides supplies to the USSR, which continues resisting the German advance.

Japan, for its part, conquers new territories in the Pacific.

Crimes against humanity

In addition to the massacres, Japan sent 10 million Chinese civilians to forced labor camps.

In Indonesia, millions of prisoners suffer the same fate on the island of Java.

In Burma and Thailand, Allied prisoners are forced to work on the construction of a railway line.

Moreover, hundreds of thousands of women are forcibly recruited into prostitution for the Japanese army.

In Europe, concentration and extermination camps are built to massacre, among others,

Jews, resistance fighters, political opponents, gypsies, homosexuals and people with disabilities.

Turning point

Fearing a second front in Europe, Hitler built the Atlantic Wall,

a series of military installations protecting the coast from invasion.

But the Allies first landed in Morocco and Algeria.

Italian Libya finds itself caught between two fronts.

Having lost control of its colonies, Vichy France is invaded.

In the East, Axis forces try to cut the Caucasus supply route.

But for the first time, the German offensive suffers a major military setback.

The Soviets take the initiative and counterattack.

Africa is now entirely controlled by Allies who organize a landing in Sicily.

The newly formed Italian government requests an armistice, causing the Germans to invade.

Retaking Europe

The USSR advances rapidly westward, forcing the German army to concentrate on that front.

On June 6, 1944, the Allies land in Normandy.

Their armies quickly liberate Paris.

In the West, as in the East, countries are liberated or switch camps.

With victory in sight, the Allied powers announce the creation of the United Nations.

Countries that declared war on Germany and Japan would be admitted at its founding conference.

This triggered a wave of war declarations but without major consequences.

End of the war

On April 30, Hitler commits suicide in his bunker just before the Soviets arrive.

Eight days later, the country surrenders.

The United States and USSR join forces to defeat Japan's Empire.

The Soviets invaded Manchuria

while the US drops two atomic bombs on Hiroshima and Nagasaki.

On August 15, Japan surrenders, marking World War II.

Consequences

After 6 years of war, the human toll is heavy with at least 60 million dead, mostly civilians.

Many cities are completely destroyed.

Europe and the USSR subject millions of German prisoners of war to bonded labour,

many of whom would die.

Germany and Austria are divided among the victors.

The old guard of European powers are left exhausted and ruined by war.

The United States and USSR emerge as the remaining global superpowers.

Despite the UN's role, which aims to maintain peace and international security,

both sides would eventually engage in indirect confrontations around the world.