友好国 (yuukoukoku) Japanese meaning: friendly nation | KotomoraJapan and the United States have been friendly nations for many years.
Usage patterns
〈国〉と友好国になるto become a friendly nation with a country
After long negotiations, the two countries became friendly nations.
友好国との関係を深めるto deepen relations with a friendly nation
友好国を訪問するto visit a friendly nation
The prime minister plans to visit friendly nations in Asia.
The government continues its efforts to deepen relations with friendly nations.