Congolese President Denis Sassou Nguesso (R) and his wife Antoinette (2nd R) welcome China&#39;s new President Xi Jinping (2nd L) and and his wife Peng Liyuan (L) on March 29, 2013 upon their arrival at Brazzaville&#39;s Maya-Maya airport on the final leg of a three-nation Africa tour that has underscored Beijing&#39;s growing presence in the resource-rich continent. Deals worth several billion dollars are due to be signed during Xi&#39;s two-day visit to Congo, the first by a Chinese president to the impoverished country of four million with significant oil resources. AFP PHOTO / Laudes Martial Mbon