Japan has a irregular coastline also is an island.And doesn't have as many resources and live on the coast.also they have many ports.
Religion in Japan
Japan is surrounded by volcanoes, mountains, and water. This means they believed in the gods that caused the disasters so they were polytheistic. which means they believed in many gods. thay also believed in that nature has spirit.
rape of nanjang
this is a sad thing the Japanese went to china and raped the women and children but some did not survive millions of them died and some felt really dishonored.