China's special envoy to the Darfur issue, Ambassador Liu Guijin, will travel to the U.S., holding talks with officials and scholars on the subject. The Chinese Foreign Ministry said on Thursday (September 6) it appreciated the efforts of the United Nations (U.N.) to broker peace in its ally Sudan. U.N. Secretary-General Ban Ki-moon visited northern Darfur on Wednesday (September 5) to try to speed implementation of the 2005 peace deal that ended Africa's longest civil war. Talking about Ban's visit, Jiang Yu said China "believes that the international community should cherish and maintain the positive momentum on the Darfur issue." China's special envoy to the Darfur issue, Ambassador Liu Guijin will travel to the U.S., holding talks with officials and scholars on the subject, Jiang Yu told the press. She said she hoped that Liu could "help Sudan improve the humanitarian and security situations in Darfur region, thus to push forward a comprehensive and proper resolution on the Darfur issue." China also said a proposed Taiwan-African Summit over the weekend was doomed to failure. "A friendly Sino-African relationship is a broad trend. Most of the African countries stick to the 'one China' policy and oppose Taiwan's independence. We think that any movement and plan that go against the historical wave will not succeed in the end," she said. Taiwan has invited senior leaders of its five allies in Africa to a summit in Taipei on Sunday (September 9) to discuss poverty relief, global warming and civil unrest in Africa, Taiwan's Foreign Minister James Huang said on Tuesday (September 4). China, the world's fastest-growing major economy, has more than 170 diplomatic partners, including the world's largest and most influential nations, while Taiwan struggles to hang on to its pool of just two dozen smaller, mostly poor allies.