noun, noun or participle which takes 'suru'
severance of diplomatic relations; diplomatic break
Formal term used in political and international contexts. Often appears with verbs like する, 行う, or 発表する.
両国は国交断絶を発表した。
The two countries announced the severance of diplomatic relations.
戦争の結果、国交断絶
As a result of the war, it led to a diplomatic break.