General Petrus J.M. "Peter" van Uhm is the current Chief of the Netherlands Defence Staff. In November 2011 he spoke to an audience of scientists, artists and businessmen, etc., complimenting them on their commitment to building a better world and noting the instruments they had chosen to do it: microscope, pen, brush, camera, money, etc. He then states that he too is committed to building a better world, and then--as a soldier walks out on stage with a semi-automatic rifle and the audience titters in anticipation--explains why "I chose a gun."
One of my History of War students pointed out this clip to me in light of our frequent classroom discussions about the code of the warrior.
(Hat tip to Mike Kitching)