Russia would pay a high price for any new military aggression against Ukraine, NATO Secretary-General Jens Stoltenberg warned, as the Western military alliance met to discuss Moscow's intentions for massing troops on the border of the former Soviet republic. #NATO #Russia #News #Reuters #Ukraine #JensStoltenberg Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en