Defense Secretary Leon E. Panetta speaks to military personnel during his visit to Camp Lemonnier in Djibouti on Tuesday. Mr. Panetta arrived in Afghanistan later in the day. He will also visit Iraq, Libya and Turkey. (Associated Press)

Defense Secretary Leon E. Panetta speaks to military personnel during his visit to Camp Lemonnier in Djibouti on Tuesday. Mr. Panetta arrived in Afghanistan later in the day. He will also visit Iraq, Libya and Turkey. (Associated Press)