Visiting Commander of the United States Africa Command (U.S. AFRICOM) Carter Ham (R) and Botswana Defense Force's (BDF) Deputy Commander Placid Segokgo attend a press conference at BDF Thebephatswa Base in southeast part of Botswana, Aug. 16, 2012. Ham denied on Thursday plans to build a military base in Botswana. (Xinhua/Guo Jun)

Visiting Commander of the United States Africa Command (U.S. AFRICOM) Carter Ham attends the closing ceremony for the two-week joint military training exercise "Southern Accord 12" between the two countries, at Botswana Defense Force's (BDF) Thebephatswa Base in southeast part of Botswana, Aug. 16, 2012. Ham denied on Thursday plans to build a military base in Botswana. (Xinhua/Guo Jun)

U.S. soldiers attend the closing ceremony for the two-week joint military training exercise "Southern Accord 12" between the two countries, at Botswana Defense Force's (BDF) Thebephatswa Base in southeast part of Botswana, Aug. 16, 2012. Visiting Commander of the United States Africa Command (U.S. AFRICOM) Carter Ham denied on Thursday plans to build a military base in Botswana. (Xinhua/Guo Jun)