TB, yes, Barzini broke the peace first.

The peace was not binding on Michael. The massacre was an artful cinematic manipulation by Puzo and FFC that would not have been necessary if Vito lived. However, with Vito counseling him, Michael could have engineered some revenge while using the results to expand Corleone hegemony.


"Generosity. That was my first mistake."
"Experience must be our only guide; reason may mislead us."
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