Secretary Cohen escorts Secretary Robertson into the Pentagon. Secretary of Defense William Cohen (right) escorts visiting Secretary of State for Defense George Robertson of the United Kingdom into the Pentagon, June 3, 1997. This was Robertson's first meeting with Cohen since coming into office with the government of recently elected Prime Minister Tony Blair. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 823779-J-UVM09-221.jpg Photo Gallery