Russo-China Union

The Russo-Chinese Union is a union spanning the entire planet. It was formed by the joint Russian and Chinese forces sometime in the 23rd century. The two main languages are Russian and Chinese (of course) and many people speak some combination of the two. the Russo-Chinese Union was created over the course of many wars and a few centuries, beginning as a plan for utopia.

Major States
Austro-Hungary

During WW3, Austria and Hungary once again became allies in the fight against Russia. When they finally fell, the two nations were molded together once and for all under the old name Austro-Hungary. German, Russian, and Chinese are the three main languages taught in schools, as well as a few Hungarian dialects picked up at home. Austro-Hungary has two elected representatives in the Council of Eurasion States.

Switzerland
Switzerland was among the first to fall to Russian forces, after the British Isles and Austro-Hungary. During WW3, Russian-occupied Liechtenstein became a Swiss canton. Essentially, Liechtenstein was a Swiss protectorate until about 2157, and finally became a canton directly before Russian troops moved in to take over.

Switzerland has one elected representative in the Council of Eurasion States. The main languages taught in schools are Russian, Chinese, and German.