Let me amend one sentence above to say: Every great power in history has done that (committing aggression and terrorist attacks), and they all act as if their own hands are clean when they do it, but that is not the case.

Russia has done it. Japan has done it. Britain, France, and Germany have done it. Italy has done it. China has done it. Spain used to do it when they were a great power. Rome did it. Persia did it. All the great powers in history have done it when they had the strength to do it and when they thought they could get away with it. The USA presently holds the crown for doing it more than anyone else in the last 50 or 60 years.