Maj. Gen. William Chambers (left), assistant chief of staff for strategic deterrence and nuclear integration, Mark Gunzinger (at podium), senior fellow at the Center for Strategic & Budgetary Assessments, and Dr. Ronald Lehman, director of the Center for Global Security Research at Lawrence Livermore National Laboratory, discuss flexible deterrence approaches for the future at a panel Sept. 20, 2011, during AFA's Air & Space Conference at National Harbor, Md.
AFA photo/Darcy Lewis
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