[Editor's note: This article began as a comment on an excellent article entitled, The Saker interviews Paul Craig Roberts. But because The Vineyard of the Saker is still shaking out the bugs from its new website, this was too long to be continued so I publish it here. I agree with Mr. Roberts on most points, but I disagree on his statement that U.S. "hostility toward Russia goes back to the Wolfowttz Doctrine."]
The U.S. government hostility to Russia and its interest in Ukraine demonstrably predate the Wolfowitz Doctrine. Bear in mind here that Barack Obama learned his geopolitics from the Russia-hating former National Security Advisor Zbigniew Brzezinski and still consults with him.
American foreign policy since World War II has been haunted by a pseudoscience called geopolitics with its corresponding geostrategy that attaches inordinate strategic importance to Eurasia. For an excellent and well-written critique of those concepts that should substantially aid understanding, see this thoroughly-referenced U.S. Army War College Quarterly paper by Christopher Fettweiss from 2000.