プログレッシブ和英中辞典(第4版)の解説
こっこう【国交】
diplomatic relations
ネパールと国交を結ぶ
establish [enter into] diplomatic relations with Nepal
国交を断絶[回復]する
「break off [restore/reestablish] diplomatic relations ((with))
北朝鮮との国交正常化をはかる
make an effort to normalize diplomatic relations with North Korea