Russian President Vladimir Putin told his Finnish counterpart Sauli Niinisto that ditching neutrality and joining NATO would be a mistake that could damage relations between their countries. #Russia #RussiaPutin #NATO #Finland #News #Reuters 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