Vermitteln. To reach agreement among enemies; intervene in a conflict, argument; enable communication between opposing parties; to bring about, to make happen; to bring those in disagreement together; to facilitate; to make a match, marriage, friendship; to help someone achieve a goal.
Diktat. Latin dictatum, from dictare. Dictation; to dictate, determine; a written command, order; to force something on another person, from the outside; dictator.
Schlichten. Old High German slihten, to even out, smoothen; as a neutral party help resolve a problem, end a fight; to make a wooden or metal surface smooth, shiny; to make leather soft, pliable.
Holzhammermethode. Literally wooden hammer method; to try to accomplish something with force. Using a wooden hammer is a metaphor in Germany for taking an unsophisticated, rough, impatient approach to a sensitive matter.