Pentagon Walk and Talk Defense Secretary James N. Mattis walks with Israeli Defense Minister Avigdor Lieberman at the Pentagon, April 26, 2018. The leaders met to discuss matters of mutual importance. DoD photo by Navy Petty Officer 1st Class Kathryn E. Holm SHARE IMAGE: Download Image: Full Size (2.37 MB) Tags: James N. Mattis, SecDef Photo By: Kathryn E. Holm VIRIN: 180426-D-SH953-2288Y.JPG Photo Gallery