depends if it was to kill an evil person to save a nation of good or if someone threatened one of my fellow echelon then absolutely but there would have to be no other choice but tell me this, would you?
No! As a Christian I would give my life to Save a nation though.
2 Corinthians 10:4-6
4 For the weapons of our warfare are not carnal but mighty in God for pulling down strongholds, 5 casting down arguments and every high thing that exalts itself against the knowledge of God, bringing every thought into captivity to the obedience of Christ, 6 and being ready to punish all disobedience when your obedience is fulfilled.