Unified Confederation of Eastern Nations

The Dōng'ōu guójiā de tǒngyī liánméng (東歐國家的統一聯盟), known in English as the Unified Confederation of Eastern Nations or UCEN for short, was a military superpower formed in 2134 from the Socialist Peoples' Republic of China, parts of the fragmented Russian Federation, and the Socialist States of Taiwan, South Manchuria, Mongolia and Hokkaidō. The UCEN was created to allow these nations to better defend themselves from the United Republic of Civilized Peoples, and by the 2170s the UCEN controlled about half of the globe.

The lingua franca of the UCEN was Mandarin Chinese.