Military power of South Korea & China and Russia

South Korea is a country located in Eastern Asia with an area of 100,210 km² (land boundries: 237 km and costline 2,413 km). The capital of South Korea is Seoul. The number of inhabitants is 51,709,098.

US-South Korea Mutual Defense Treaty is a cornerstone of South Korea’s security. The Treaty gave the US permission to station land, air, and sea forces in the territory of South Korea. The USA maintained approximately 28,000 military personnel in the country. South Korea has been engaged with NATO through dialogue and security cooperation since 2005 and is considered by NATO to be a global partner. The South Korean military is equipped with a mix of domestically-produced and imported weapons systems. The top foreign weapons supplier is the United States and some domestically-produced systems are built under US license.

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.