U.S. Africa Command has “very significant operational concerns” about the Chinese opening up a military base several miles from the U.S. military's Camp Lemonnier in Djibouti, according to the command's chief. Speaking to reporters during a breakfast Monday in Washington, AFRICOM chief Gen. Thomas Waldhauser noted Camp Lemonnier, located in the Horn of Africa, is a “significantly important base vis-a-vis its geography.” “It is a first for them -- they've never had an overseas base -- and we've never had...