The main allied powers of WW2 were:

• The United States of America
• France
• England
• Russia

Allies were trying to stop Germany from taking over the world.

Adolf Hitler took control of Germany in 1933 and then later conducted the axis powers which were made of the countries:

• Germany
• Italy
• Japan

During most of world war 2, Franklin D. Roosevelt was the president for most of the war. On April 12th,1945 Franklin died in warm springs, Georgia. Later Harry S. Truman came into office.

During World War 2, Adolf Hitler was the dictator of Germany

• Dictator-someone who has absolute power over a country. In some cases, dictators personally make all decisions regarding that specific country.
• President-a leader of an organization, company, trade union, university or country
• Prime Minister - 1)a chief minister appointed by a ruler  2)the head of the cabinet and often the chief executive of a parliamentary democracy

which means our president has to be voted (or elected) into office, but a dictator can just take over the country without any authorization from others.

World War 2 started when Germany invaded Poland. Later Poland's allies joined to help them. Soon Germany found this out and all of their friends joined. Soon everyone had joined World War 2!

During World War 2,Germany invaded many countries such as Poland, Denmark, Norway, Holland, France and much more. Germany invaded so many countries because Hitler wanted to maintain power as well as take power from other countries.

In the summer of 1940, Hitler decided to invade Britain. Its plan was to take control of the English Channel by destroying the Royal Air Force and then to send German troops into Britain to take control.

The United States decided to stay out of the war because of its own problems like the great depression. U.S also remembered how tragic World War 1 was and hence didn't want to go down that road again so.

America was allies with Russia. Russia was upset that the Japanese were taking over China. So America told Japan that if they took over China, then it would stop trading oil with them. This obviously made Japan upset, so they decided to bomb Pearl Harbor,Hawaii when all of the workers were on holiday break. It brought such anger and hatred that U.S had to join the war.

During World War II, U.S fought on Pacific front from where it fought Japanese and also fought the European front from where it fought the Germans.

June 6th 1944, also known as the "D-Day" was when America and Britain went and invaded France to take it back from Germany.

World War II ended bad for Germany because they no longer had a leader as Hitler committed suicide.A week after he died, Germany surrendered.

Since both Germany and Japan lost, the countries that were taken over were finally released. America was finally out of a great depression and was booming with industry.