Secretary of Defense Rumsfeld holds a press conference in the Pentagon. Secretary of Defense Donald H. Rumsfeld holds a press conference in the Pentagon on Jan. 26, 2001. Rumsfeld was sworn in as the 21st secretary of Defense in a ceremony at the White House Oval Office earlier today. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 638071-D-SWT75-132.jpg Photo Gallery