Is it loving your enemies to kill them? Why will all those taking the sword perish with the sword? Jesus says the greatest love involves a man laying down his own life.

Matthew 26:52: "Then said Jesus unto him, Put up again thy sword into his place: for all they that take the sword shall perish with the sword."

John 15:12-14: "This is my commandment, That ye love one another, as I have loved you. Greater love hath no man than this, that a man lay down his life for his friends. Ye are my friends, if ye do whatsoever I command you."