Photo Op Acting Defense Secretary Patrick M. Shanahan meets with NATO Secretary General Jens Stoltenberg at Pentagon, Jan. 28, 2019. SHARE IMAGE: Download Image: Full Size (2.99 MB) Tags: Shanahan, NATO, Acting Secretary of Defense Photo By: Army Sgt. Amber I. Smith, DOD VIRIN: 190128-D-SV709-0138Y.JPG Photo Gallery