While fighting our enemies might seem like the logical thing to do, St. Anthony Zaccaria had other thoughts.
The founder of the Barnabites gave the following sermon that is featured in the Church's Office of Readings. In it, he explains how a follower of Christ should deal with enemies.
St. Anthony was a strong proponent of not trying to out-argue an enemy, but to show them love and compassion.
He believed that goodness would triumph over evil.
This strategy is something that Jesus himself did while on earth, going out of his way to show love for his enemies, even dying on a cross for them.