There are many different cause for World War II. To Japanese militarism, to Political takeover from Hitler here are some of the reasons for World war II. The Treaty of Versailles was a complete and almost a total failure due to the distaste of many of the allied powers. Here we have Japanese militarism. Japanese militarism spread rapidly throughout Japan, being it is that Japan has an emperor but at this time the military had more of a say than the crowned emperor. Next the politacal takeover of Hitler, because we all know that the takeover of Hitler in Germany contributed greatly to the war.
actually the japs decided to bomb santa barbara ca it did minimal damage though. therefore it was not that popular and America went to war with Germany because Germany,Japan,Italy, and the rest of the axis powers had a pact that if one went to war the rest would back em up. so Germany and Italy declared war on us on December 9th 1941 due to the pact.
The Indus river was a constant flow of natural resources. The river also made the soil very fertile and that meant good crops when planted in the right season, it also made it easy for trade boats to pass through.