Matthew 5:38-42 (NLT)
38 “You have heard the law that says the punishment must match the injury: ‘An eye for an eye, and a tooth for a tooth.’
39 But I say, do not resist an evil person! If someone slaps you on the right cheek, offer the other cheek also. 40 If you are sued in court and your shirt is taken from you, give your coat, too. 41 If a soldier demands that you carry his gear for a mile, carry it two miles. 42 Give to those who ask, and don’t turn away from those who want to borrow.
This scripture specifically addresses the proper behaviour of a person “recruited” for help by a Roman soldier. The model of Christian behavior is to not only be compliant, but to “go the extra mile.”