Where does Jesus stand on war and peace? I see this quote


  “Do not think that I came to bring peace on Earth; I did not come to bring peace, but a sword. For I came to set a man against his father, and a daughter against her mother, and a daughter-in-law against her mother-in-law; and a man’s enemies will be the members of his household. He who loves father or mother more than Me is not worthy of Me; and he who loves son or daughter more than Me is not worthy of Me. And he who does not take his cross and follow Me is not worthy of Me. He who has found his life will lose it, and he who has lost his life for My sake will find it.” (Matthew 10:34-39 NASB)


And there are many interpretations (see http://en.wikipedia.org/wiki/But_to_bring_a_sword#Interpretations)

Also, Jesus is known as the Prince of Peace (Isaiash 9:6), so this is quite confusing. What then, does the "sword" refer to? Does it mean that Jesus is por-war? Or does it just mean that Christianity is a contentious doctrine that will lead SOME people to wage war?

Jesus advocates peace, right?
This is not about war, as in killing people, but about the coming struggle to bring people into the Christian faith, when the faith will deny their previous beliefs, whether Jewish or Pagan. Jesus is likening the struggle to spread the faith to a war. I believe this interpretation is pretty much universal to all denominations.

This verse is sometimes cited by non-Christians as evidence that Jesus was a historical  militaristic guy, like Bar-Kochva. This is just not a reasonable interpretation.