Koguryo is also called Koguryo, right?

Korea is Korea.

It's totally two countries.

Koguryo is a country established by the descendants of ancient immigrants from China who moved to the northeast and lived together with local people. It was later destroyed in the Tang Dynasty.

Korea was also founded by China immigrants and descendants of local aborigines.

Before the Ming dynasty. Korea is divided into three small countries.

Pyongyang and other places belong to China.

So Goguryeo and Koryo are completely different. It can't be called Gao Koryo.

For example. Baidu and Baidu. Can it be a company?