You appear to say that if one activity is termed as terrorism or barbarism the other similar activity has to be termed so. I think terrorism is terrorism and is not relative or as compared to any other thing. You can simply say activity of this country or person was an act of terror and at the same time do not need to say that because somebody else did same activity and was called a terrorist, therefore, this person or country is also terrorist. Killing of even one person is barbaric and no need to justify it and compare it with other situations.