The question most people ask is when did World War 2 start (or WW2)? It begun in 1939. By 1945 the war had come to an end. It involved many nations. All of the great powers were involved in the fight.

1. http://www.worldwar2facts.org/when-did-world-war-2-start.html
Answers To The Question
When Did World War 2
Start
The question most people ask is
when did World War 2 start (or
WW2)? It begun in 1939. By 1945
the war had come to an end. It
involved many nations. All of the
great powers were involved in the
fight.
The two military forces behind the
wars were Axis and the Allies. It
made history. It was widely
spread. There were hundreds of
millions of people who were
recruited into the military units.
They were heavily trained.
The participants of the war
channeled their resources to
funding it. They used their
scientific, economic and
industrial strengths to outwit
their rivals. It was devastating.
Millions of civilians died. It is
approximated that there were a
total of seventy million fatalities. There was massive
destruction. In history, there are no records of a deadlier
war. New weapons such as nuclear weapons were unleashed
The war is said to have started with Germany invading Poland.
After this there was a series of declarations by France and
countries in the common wealth declaring war against Germany.
The British Empire was also against Germany. Germany had a
vision of developing a large empire in Europe and had already
started executing this plan by making treaties and
campaigning.

2. A large part of continental Europe had been subdued by
Germany. The Common Wealth and Britain enabled the continuance
of the fight against the Axis. Some of the wars took place in
North Africa. Atlantic was also another battle field. The
Soviet Union was attacked by the Axis in the year 1941. In the
same year, Japan joined the Axis as a strategy of dominating
the Asian continent. After this the United States was attacked
by Japan in the Pacific Ocean. It was then that they managed
to conquer West Pacific.
In 1942, the advances of the Axis were put to a stop. They had
lost majority of the wars. They had lost the war in North
Africa. Moreover, Japan had lost a majority of its naval
battles. The capture of Berlin in Europe ended the war. This
was accompanied by the unconditional surrender by Germany.
This took place in the month of May. The war in Asia continued
until August when Japan eventually surrendered
This occurrence totally changed the social and political
structure of the world. The United Nations was formed just
after the win to encourage cooperation among the nations. The
body was also required to prevent future international
conflicts. I think with the above facts we have succeeded in
answering the question when did WW2 start.
http://www.worldwar2facts.org/when-did-world-war-2-start.html