Military power of China and Russia & Union State of Russia and Belarus

A hypothetical military alliance between China and Russia. The two countries share a land border and they signed the Treaty of Good-Neighborliness and Friendly Cooperation in 2001. A twenty-year strategic treaty extended or another 5 years after its expiration in February 2022. China is the world's most populous country, with a population of more than 1.4 billion people, on the other hand Russia is the largest country in the world by area, covering over 17,098,246 square kilometres.

Currently, China focuses on domestic weapon designs and manufacturing, while still importing certain military products from Russia, such as jet engines. In September 2018, Russia hosted the militaries of China and Mongolia as a part of the Vostok 2018 military exercise. Russia and China flew joint bomber patrols over the Pacific. China refused to condemn the Russian invasion of Ukraine. Following the implementation of international sanctions during the war, China provided economic relief to Russia.

The Union State of Russia and Belarus is a supranational organisation consisting of Russia and Belarus. The present goal of the Union State mainly focuses on economic, defense integration and intelligence apparatuses. Russia and Belarus in 2009 implemented the first stage of joint military officer training programs designed to integrate the military structures of the countries. This military collective is called the Regional Forces Group of Belarus and Russia.