Did the Bull, Unam Sanctam, authorize/promote Christian aggression by the "temporal sword"? Pope Boniface VIII promulgated the Papal bull entitled, Unam Sanctam. In it, he speaks of two swords: the spiritual sword (gladius spiritualis) and the temporal sword (gladius temporalis).


  We are informed by the texts of the gospels that in this Church and in
  its power are two swords; namely, the spiritual and the temporal.
  
  In hac ejusque potestate duos esse gladios, spiritualem videlicet et temporalem, Evangelicis dictis instruimur.


Did this Papal bull authorize Christian aggression by the sword (i.e., offensive military action), or does it simply implore Christians to defend themselves against the aggression of others? Or, none of the above?

And, is this Papal bull still in force today?
Pope Boniface VIII said there are two swords: 


  Both, therefore, are in the power of the Church, that is to say, the spiritual and the material sword, but the former is to be administered for the Church but the latter by the Church; the former in the hands of the priest; the latter by the hands of kings and soldiers, but at the will and sufferance of the priest. However, one sword ought to be subordinated to the other and temporal authority, subjected to spiritual
  power. 


By this, he was asserting that ultimate authority lay in the Church under his rule. In this bull, he was not promoting military action, nor proposing that Christians should defend themselves. He was stating that secular rulers must be subordinated to the Church and carry out its commands. The concluding remark in the bull is, "Furthermore, we declare, we proclaim, we define that it is absolutely necessary for salvation that every human creature be subject to the Roman Pontiff."

Shortly after Boniface's death, Pope Clement V withdrew Unam Sanctam, so this bull is no longer in force although it was not the last time that popes attempted to assert authority over temporal rulers.