Русско-англо-русский юридический словарь

To many of you unfamiliar with alternative dispute resolution, arbitration may be starting to sound a heck of a lot like litigation. The key difference is that arbitration usually takes place behind closed doors and the arbitrator's decision must remain secret unless the parties agree otherwise. (FindLaw UK)

Secret diplomacy means diplomacy carried on by kings, presidents and other rulers, without the knowledge or consent of the people and behind closed doors. Through secret diplomacy the kings, presidents and other rulers, intent to pursue the goals of foreign policy through effective means of compromise, persuasion, and threat of war. It is also termed as quiet diplomacy. (USLegal)