Deputy Assistant to the Secretary of Defense for Chemical and Biological Defense Anna Johnson-Winegar (second from left) discusses steps being taken to protect U.S. troops in the Persian Gulf during a Pentagon press briefing on March 13, 2003. The senior leadership of the Department of Defense medical community briefed reporters on force health protection measures being implemented. From left to right: Assistant Secretary of Defense for Health Affairs Dr. William Winkenwerder Jr.; Johnson-Winegar; Deputy Under Secretary for Health, Department of Veterans Affairs Dr. Jonathan Perlin; Deputy Assistant Secretary of Defense for Force Health Protection & Medical Readiness Ellen Embrey; Rear Adm. John Mateczun, U.S. Navy, senior medical officer, The Joint Staff; Army Surgeon General Lt. Gen. James Peake (seated); Navy Surgeon General Adm. Michael Cowan and Air Force Surgeon General Lt. Gen. George Peach Taylor.