what are considered the major causes of World War Two?

Germany and Japan

Oh, there are so many! The Versailles Treaty, which shakled Germany with prohibitive war repariations, the Great Depression (probably the biggest factor because American banks called in German debts to cover their own, and forced the German economy to go bust -- a situation that lead directly to the rise of the Nazi party), German militarism (specifically the invasion of Poland in 1939 which started all the European dominoes falling into another world war just like the assassination of Crown Prince Fredrick Ferdinand brought on the first one), and on the Pacific front, Japanese militarism and expansionism. All of which culminated in Japan's attack on Pearl Harbor, Dec. 7, 1941. Germany, allied with Japan, and pissed off over U.S. support for England, particularly the "Lend Lease Program" (whereby military equipment was loaned or leased to England, to avoid the fact that they couldn't possibly pay for it), declared war a few days later, and the rest, as they say, is history.

World War Two began in September 1939 when Britain and France declared war on Germany following Germany's invasion of Poland.

Although the outbreak of war was triggered by Germany's invasion of Poland, the causes of the war are more complex.

The Great Depression and the Versailles Treaty.

The Nazis rising up
The Holocaust
The Germans angry at the Weimar (forgot how to spell it) Republic
The Germans' pride shattered after WWI
Adolf Hitler and the Nazis crossing the Polish border
Nazi invasion of other countries

The fact that Germany was in debt and deep in problem was the cause of the war. As the chain reaction to the lost of the WW1, Germany was greatly weakened. The citizens were angry, and that was when Hitler appeared. He used the mind of the angry citizens to gain power, than finally, started to attack other countries for land and money. Italy soon joined him (Mosolini) and while those two countries faught in Europe, Japan conquered Asia.

Germany invade the Poland.

Power and greed.

The Axis power.

Well Hitler had simple answers to complicated questons. Plus countries like Great Britain gave into his demands.

Have a read of "The Da Vinci Code" by Dan Brown - I'm sure he has a theory on it

The Pearl Harbor by the Japanese, and the sinking of unarmed passenger and cargo ships by Germany.

Hitler took over the world almost, and we English helped fight against him. Without our help you would be gone americans. But I love you anyway!!! Because did you know that America is Englands 1st ali? So I love you!

power and greed

the great depression

Japan and Hitler

the jews

Hitler and his Final Solution. that is Hitler's nigh on successful attempt to wipe the Jewish nation off the face of the earth.

Well, if you are asking why Hitler wanted to take over the world, in a nutshell: it is in part due to huge (unreasonable) reparation payments imposed on Germany after WW1 which plunged the country into a huge depression (which also helped build support for Hitler from the citizens, because he promised a better economy which he did actually deliver) and because of a personal vendetta because he couldn't handle being defeated in WW1 (Hitler himself served in the army during the first world war).

World War I and the Treaty of Versaille and the humiliation of Germany. Germany's desire for liebensraum, or living space for the Third Reich. Japan's lust for Pacific Rim power and the fight for resources, specifically oil and rubber. Colonial polices of the European powers and the awakening of indigenous nationalist groups. And finally, too many men on the planet. And finally, just pure hate.

hitlers one and i dont know how but in some way it was president bush's fault

Nazi expansion into Poland after Europe had apeased them with other lands and finally held up to their warnings against further expansion.

territory

war reparations from WWI and rise of NAZI's

Nationlism. Germany's economic went down.

The Treaty of Versailles ordered Germany to pay millions after all the damage they caused during WWI, it devestated the country and Germany was angry about it. They looked for a new leader and Hitler promised that he would restore Germany to it's former glory. Invading Poland was one of the biggest reasons WWII started. Poland promised to Give Hitler access to East Prussia but Poland broke the agreement. He wanted more land to show that Germany was powerful, he was greedy

the united states wasnt going to enter WW2. they did however on dec.4 after japan bombed pearl harbor. they didnt do to release the jews in concentration camps, that was just the fight they had to do

The official trigger was the assassination of the president of the Chech-Republic ( or one of the small countries around there, I can't remember which)

Or maybe this is WW1