six months and then another six months of a sister thaafter tha out. >> and the u.s. is threatening more tariffs, but the presidents of russia and china are promising the opposite. vladimir putin and xi jinping were both at a bric summit this week, the leaders signed a joints declaration promising open and inclusive trading. for years china has sought better economic and military ties in africa and president xi is capping off an africa tour. for more on this, i'm joined now from johannesburg by collin coleman, managing director for sub saharan africa and partner at goldman sachs. thanks so much for joining us. we'll begin with president xi jinping kicking off this year's summit, critical of the u.s. for escalating tariffs on foreign products. is the trade war hurting emerging economies, those of the