Abstract
The aim of the following research is to investigate the epistolary of Cyprian of Carthage, in order to analyze whether and to what extent the military lexicon used by the African prelate had an «aggregating» value in a delicate period for the Church (252-254), marked by the persecution of Trebonius Gallus and the spread of the plague. We hypothesize a subtle but substantial difference in the regular use of miles Christi between the letters of 250-251 and those after 252 as if leader Cyprian, initially heir to the scriptural tradition (especially Pauline), from Epistle 57 onwards reworks the concept of Christian militancy with a more social purpose, trying to counter, through an unconcealed call to (spiritual) arms, social disintegration with a communicative style typical of a legion commander.