noun, noun or participle which takes 'suru', intransitive verb
breaking off relations; severing diplomatic ties
Primarily used for formal severance of diplomatic or official relations between countries. Can also apply to organizations or individuals in a strong, decisive break.
両国は国交を断交した。
The two countries severed diplomatic relations.
その事件をきっかけに、彼は友人と
After that incident, he broke off relations with his friend.