For Africa, the retreat of a long-standing security partner opens a strategic vacuum to be filled by other global actors A shift appears to be underway in US-Africa relations, judging by the remarks of Vice President J.D. Vance and AFRICOM Commander General Michael Langley. Speaking to new US naval graduates on May 23, Vance talked about re-evaluating the American military role around the world and declared that “The era of uncontested US dominance is over"  and that open-ended military