Tell that to the Kurds in Iraq and Syria.
Tell that to the opposition to Noriega in Panama
Tell that to Britain, France and Israel who we betrayed when they tired to gain control of the Suez canal in the 50s
Tell that to the people of Vietnam whom we promised aide if they signed the peace treaty we negotiated behind their backs and then after they did said "just kidding", leading the leader of South Vietnam to say "It is so easy to be an enemy of the United States, but so difficult to be a friend"