A long, quite interesting comment thread attached to this CT post is mostly about the Vietnam War but it veered off in the later stages to discussing the first Gulf War, and a couple of comments reminded me of the fact that sanctions on Iraq, from the early '90s through 2003, had a huge negative impact on the civilian population. The corruption in the UN's oil-for-food program didn't help and Saddam Hussein himself was of course no beacon of humanitarian compassion, but apart from that the sanctions caused a great deal of suffering. And the air campaign during the first Gulf War, with its destruction of the electrical grid, was (partly) designed to intensify the sanctions' effect, as one commenter noted.
So here is another case where one might ask where Sen. McCain stood. Did he oppose U.S. and UN sanctions on Hussein's Iraq on the ground that harming civilians contravened U.S. values and "our interests are our values"? I doubt that was his position.