In March 1785, Thomas Jefferson and John Adams went to negotiate with Tripoli's envoy in London, Ambassador Sidi Haji Abdrahaman (or Sidi Haji Abdul Rahman Adja). Upon inquiring "concerning the ground of the pretensions to make war upon nations who had done them no injury", the ambassador replied: “It was written in their Qu'ran, that all nations which had not acknowledged the Prophet were sinners, whom it was the right and duty of the faithful to plunder and enslave; and that every Muslim who was slain in this warfare was sure to go to paradise.”
I think that it’s time we all remember the Marine Corp hymn!