Reflecting duties of good friends near conflicts

My person thought it's possible good to count and remember the reaction of Dhammikas when "fellows" get in conflict. Not taking side, what are the useful supports in regard of conflicts in other single relations? While common fools, group-identifying, increase conflicts, how does a wise give helpful support for all? How do faithful householder, faithfull Brahmans, wise recluse, pull out nourishment of heat?