What happened when the u. s. occupied japan after world war 2? middle school

Before WWII Japan had a Oligarchy government, kind of a military dictatorship; and when the U.S. occupied Japan after the war, political institutions were took apart through the SCAP policy (a set of standards for security policies) transitioning from Oligarchy to Democracy, they tried to get rid of their imperial system, but there was not a complete agreement on that, so only the position of Imperialism was replaced with democracy.

When Japan was forced to surrender after the atomic bombs were dropped on Hiroshima and Nagasaki in August of 1945, World War II came officially to an end. In September of that year, U.S. forces, led by General Douglas A. MacArthur, occupied the state and implemented a series of political, social, military, and economic reforms aimed at sanctioning and rehabilitating the country, establishing a democracy, and securing a close alliance in the future. They remained there until 1952.

Some of those reforms included:

- Trying those who had been responsible for the war.

- Dismantling the army as well as the military industry.

- Drafting a new constitution, which restricted the authority of the emperor and granted equal rights to women, among other changes.

- Giving farmers more control over the land and promoting a free market economy.

- Allowing the existence of free trade unions.

- Teaching democratic values and ideas in the schools.  

- Fighting communism.