Artillery Quotes
The pope attempted a boycott of weapons against the Ottomans who were threatening Crete, then controlled by Christian Venice. The French and others did not respect the boycott. As in modern times, boycotts were easily broken by those wishing to profit from trade. Crete fell. The Catholic boycott had actually started in the 16th Century with minimal effectiveness, but Clement IX made a vain effort to enforce it.
There were several attempts to stave off the Civil War. This was one.