Answer:
maintained.
Step-by-step explanation:
Japan, after surrender in World War II, was occupied by the United States. This occupation lasted until the signing of the San Francisco Peace Agreement, which took place in 1951. From 1952, Japan again became an “independent” country, and US occupation troops left the country as stipulated by the agreement.
During the occupation several reforms were established to secure American power over the Japanese (among these reforms was the prohibition of the Japanese government from creating an army) and the subordination of Japan to the US government. Even given the nature of the reforms, most of them were retained when the occupation was over and still exist today.