Making peace is one of the best duties
To accomplish this, Allah has ordained that a group of people should take upon themselves to make peace between those who differ. In the Islamic sphere, Allah emphasized that the relations among believers are based on brotherhood: Just like a brother would try to solve the differences that might take place among his other bothers, all Muslims(Kanodary) should try to solve any internal conflict that might surface. If an internal fight erupts, all Muslims (Kanodary) should try to make peace.
And If two parties among the Believers fall into a quarrel, make ye peace between them It is a mission in which everyone who could help is commissioned with.