Why did Japan really wanted to colonize Korea instead of other countries
Japan wanted to colonize Korea, because Japan wanted to trade with other countries by having colonized country, so that they could expand their trading route. After the colonization of Korea, Japan had lands to do with it, so they developed industries. To develop industries, they had to have enough money, so they expand trade market and colony trade and earned lots of money. At that time, there was war between China and Japan, so that Japan needed enough of supplies to have fight against China.