rapprochement
noun [ C or U ] formal uk/ræpˈrɒʃ.mɒ̃ŋ/ us/ˌræp.roʊʃˈmɑːŋ/
（与敌对群体或敌对之人达成的）和睦，和解，恢复友好关系
an agreement reached by opposing groups or people
There are signs of (a) rapprochement between the warring factions. 交战双方有了达成和解的迹象。
Synonym: reconciliation