I am sure some intentional some not intentional. But as history suggests most countries have a warlike past and if you were to deep dive into any society you would expose many atrocities. Just singling out the US since WW2 is not completing the whole picture the human race has been around for a while. Ethnic cleansing, Border disputes, religious upheaval, Boxer rebellion, Bolshevik revolution, so on and so on. Picking on one nation and not discussing others is very short sighted especially when a conflict as we are suppose to be talking about as the thread suggests is Ukraine and the Russian special operation.