► Read more at https://on.ft.com/2HXm9gO <br /> <br />The head of the North Atlantic Treaty Organization Jens Stoltenberg warns the US Congress of the threat posed by a more assertive Russia <br /> <br />► Subscribe to FT.com here: http://bit.ly/2GakujT <br /> <br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs <br /> <br />For more video content from the Financial Times, visit http://www.FT.com/video <br /> <br />Twitter https://twitter.com/ftvideo <br />Facebook https://www.facebook.com/financialtimes
