What are some reasons why some Christians may disagree with retaliation as a reason for war? Add sources of authority.

Jesus says 'Turn the other cheek'. Jesus was a pacifist. Jesus says, 'Forgive 70X7 times'. The Bible says 'Love your enemies'. The Bible says 'Do not be overcome by evil, but overcome evil with good'. The Bible says 'All who live by the sword die by the sword'. The Lord's prayer asks for forgiveness 'forgive us our trespasses and for those who have trespassed against us'. The Bible says 'Do not repay anyone evil for evil'.