noun
ruining a country; national ruin
Refers to the act or process of destroying a nation, often through misrule, war, or moral decay.
放漫財政が亡国を招く。
Reckless fiscal policy leads to the ruin of a nation.
歴史家はその政策を亡国の道と呼んだ。
Historians called that policy the road to national ruin.
noun
ruined country; fallen nation
Describes a country that has already been destroyed or has ceased to exist as a political entity.
その小説は亡国の王子の物語だ。
That novel is the story of a prince of a ruined country.
Compound of 亡 (ぼう, 'to perish, to be ruined') and 国 (こく, 'country'). The kanji combination directly conveys the meaning of a country's ruin or a ruined country.