An independent state or nation that is not subject to another country's rule and has its own government and sovereignty.
その地域は長年の闘争の末、ついに独立国として認められた。
After years of struggle, the region was finally recognized as an independent state.
独立国として国際社会に参加するためには主権の行使が必要だ。
To participate in the international community as an independent country, it must exercise sovereignty.
植民地支配から解放されて独立国となった。
It became an independent nation after being liberated from colonial rule.