For 1700 years or so it has been the consensus among Christians that Jesus was no pacifist. This is hardly surprising given the number of wars fought, directed, and instigated by sincere, doctrinally orthodox, Christians. History would make no sense, and neither would the political commitments of most contemporary Christians, if Jesus were a pacifist.
Yet there is some reasonably strong textual support in the gospels for the proposition that pacifism of some variety was part of Jesus’s message: “But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.” (Matthew 5:39. Nearly the same: Luke 6:29.) “[F]or all they that take the sword shall perish with the sword.” (Matthew 26:52).
The exegetical enterprise bent on demonstrating that these passages do not mean what they say has been determined and well credentialed. Sometimes it is a little crude, but sometimes it displays strong scholarship and not implausible arguments. Still, I think the tradition has been somewhat more confident than is warranted in its conclusion that Jesus was no pacifist.