Answer:
Freedom.
Explanation:
After the people had lost all connections with Britain, and it’s unfair rules against them, they wanted a land of freedom,( plus it was a treaty sort of thing).
Operation Enduring Freedom
Oil had been discovered there
The official introduction, according to the Japanese records actually happens in 552 CE when monks from Korea, this time, came to Japan and introduced the principals precepts of Buddhism and brought some treasures with them.
The first years were not actually easy as Buddhism became one more tool in the struggle for power over the imperial dynasty by the Soga clan over the rival Mononobe and Nakatoni clans.