Gen. Dunford holds news conference on military operations, attack in Niger

Chairman of the Joint Chiefs of Staff Marine Gen. Joseph F. Dunford briefs the media on the operation in Niger. SUBSCRIBE to ABC NEWS:    / abcnews   Watch More on http://abcnews.go.com/ LIKE ABC News on FACEBOOK   / abcnews   FOLLOW ABC News on TWITTER:   / abc   GOOD MORNING AMERICA'S HOMEPAGE: https://gma.yahoo.com/