Deputy Defense Secretary Bob Work makes remarks during the annual Martin Luther King Jr. observance at the Pentagon, Jan. 15, 2015. Deputy Defense Secretary Bob Work makes remarks during the annual Martin Luther King Jr. observance at the Pentagon, Jan. 15, 2015. SHARE IMAGE: Download Image: Full Size (2.01 MB) Tags: Photo Essays Photo By: VIRIN: 727381-A-GWF40-961.jpg Photo Gallery