Military power of China and Russia & NATO

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 North Atlantic Treaty Organization (North Atlantic Alliance) is an intergovernmental military alliance which was signed in Washington on 4 April 1949. NATO is a system of collective security: its independent member states agree to defend each other against attacks by others countries. NATO's main headquarters are located in Brussels. The following twelve states signed the treaty and became the founding members: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, Netherlands, Norway, Portugal, United Kingdom and United States. The following states joined the treaty after 1949: Greece, Germany, Turkey and Spain. Members who joined after the dissolution of the Soviet Union: Czech Republic, Hungary, Poland, Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, Slovenia, Albania, Croatia, Montenegro and North Macedonia.

Before and during the 2022 Russian invasion of Ukraine, several NATO countries sent army to reinforce the alliance's eastern flank. Alliance had deployed 40,000 troops along its 2,500 kilometres long Eastern flank to deter possible Russian aggression. On 5 July the North Atlantic Alliance members signed off on the accession protocols for Sweden and Finland and formally approved the decisions of the NATO summit.

Finland joined the alliance on 4 April 2023.