Foreign Minister James Cleverly has insisted the presence of UK and US troops at the Russia-Ukraine border is an example of Nato allies supporting each other as they should. <br /> <br />He added Nato is a "purely defensive" alliance and has never expanded by force or coercion. Report by Alibhaiz. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
