Russian President Vladimir Putin on Sunday (Feb 27) ordered his military command to put Russia's deterrence forces - a reference to units which include nuclear arms - on high alert. The Russian cited aggressive statement by Nato leaders economic sanctions against Moscow. READ MORE: https://str.sg/wswY Follow ST’s live coverage of the Ukraine crisis: https://str.sg/ukraine-live VIDEO: REUTERS SUBSCRIBE ➤ http://bit.ly/FollowST -------------------- WEBSITE ➤ http://www.straitstimes.com TELEGRAM ➤ https://t.me/TheStraitsTimes FACEBOOK ➤ / thestraitstimes TIKTOK ➤ / straitstimes INSTAGRAM ➤ / straits_times TWITTER ➤ / straits_times PODCASTS ➤ http://str.sg/stpodcasts