That doesn't make being a warrior any less honorable.
The point was, that David (the person that YOU brought up) was a ISRAELITE warrior. That, in itself, makes all the difference in the world. Why? Because David fought for a nation that God had chosen to be his people. You, Yeru, fight for a nation that can't claim to be chosen of God. For that reason, no true Christian can conscientiously involve himself in the squabbles of the world.
Get off your moral high horse and appreciate the sacrafices these warriors make for you.
Because you wish to talk down your nose to me, Yeru, I will reply to you in a frank way, as follows: You're a soldier of a gentile nation, Yeru, and therefore not a true Christian. The Churches are full of people who lack the discernment that you show here by your comments.