Flag of the Sino-Soviet Union

The Flag of the Sino-Soviet Union, also known as the Four-star Red Flag, is the national flag of the Sino-Soviet Union. The flag is a solid field of red adorned with a gold emblem in the upper cornor showcasing the iconic hammer and sickle with four gold-bordered stars and two gold lines underneath. The flag was originally designed by Zeng Liansong who had designed the original flag for China after the Chinese Civil War had ended in 1947 and he combined it with the Soviet flag along with a hint of the "Yellow River" design that Mao originally prefered.

Symbolism
The red color of the flag represents the ideology of communism of which the Sino-Soviet Union was founded upon. The red field is decorated by the iconic hammer and sickle logo representing the working class and struggles of the worker and its colored in gold. Four gold-bordered stars are displayed around the front of the symbol representing the close relationship between the Soviet people and the unity of the Russian and Chinese peoples as well. The two gold lines at the bottom are used to represent the Yellow River and the long march that the originaly Chinese communists took during the Chinese Civil War.