Russia has put forward a highly contentious list of security guarantees it says it wants the west to agree to in order to lower tensions in Europe and defuse the crisis over Ukraine, including many elements that have already been ruled out. ...The demands, spelled out by Moscow in full for the first time, were handed over to the US this week. They include a demand that Nato remove any troops or weapons deployed to countries that entered the alliance after 1997, which would include much of eastern Europe, including Poland, the former Soviet countries of Estonia, Lithuania, Latvia, and...