150,000 Russian troops are massed within a portion of what had been the Ukraine eight years ago. There is heavy indication that the Russian forces will soon invade the rest of the Ukraine. While Jesus said to "give to everyone who asks of you," He would not want people to sit idly by while a evil dictator like Putin, who has already drawn up hit lists of "dissidents" to be imprisoned and even executed. Failure to act when one's actions could prevent evil is abetting evil. We saw this in the 1938 Conference at Munich as the world sat back while Hitler pushed for world domination.
There is a difference between retaliation and defending the safety of others.