MOSCOW (Reuters) - Russian President Vladimir Putin ordered his military command to put Russia's deterrence forces - a reference to units which include nuclear arms - on high alert, citing aggressive statements by NATO leaders and economic sanctions against Moscow.

       "As you can see, not only do Western countries take unfriendly measures against our country in the economic dimension - I mean the illegal sanctions that everyone knows about very well - but also the top officials of leading NATO countries allow themselves to make aggressive statements with regards to our country," Putin said on state television.

       (Reporting by Dmitry Antonov; Writing by Olzhas Auyezov)