In 1944, the Americans sent a special diplomatic envoy, called the Dixie Mission, to the Communist Party of China. According to Edwin Moise, in Modern China: A History 2nd Edition:
Most of the Americans were favourably impressed. The CPC seemed less corrupt, more unified, and more vigorous in its resistance to Japan than the KMT. United States fliers shot down over North China ... confirmed to their superiors that the CPC was both strong and popular over a broad area. In the end, the contacts with the USA developed with the CPC led to very little.