In Africa, West African troops are amassing at Gambia’s border, poised to intervene if President Yahya Jammeh does not relinquish power today. Incoming President Adama Barrow won December’s elections, but Jammeh has so far refused to step down. He’s been in power since 1994 and once vowed to rule for “a billion years.” The United Nations say more than 25,000 people have fled Gambia to neighboring Senegal amid the rising tensions.