The national flag of the Republic of the Congo consists of a green triangle on the hoist end and a red triangle on the fly end, separated by a yellow diagonal band.
It was August 1959 that the Legislative Assembly considered a flag that could fly with the French Tricolor to represent the Congo. Following debate, the assembly chose a flag of the pan-African colors (red, yellow, and green) arranged in the unique diagonal pattern.
The flag was approved on August 18, 1959 by the Legislative Assembly. The flag was officially adopted on September 15, 1959 and did not change after independence. From December 1969 to the early 1990’s a red flag was used because the Republic of Congo temporarily became a socialist country. After the transition to a free election system and market oriented economy in the early 1990’s the, the new government restored the original pre-1970 flag on June 10, 1991.
Each color of the flag has a geographical or historical meaning in respect to the Republic of the Congo. The yellow band represents friendship and nobility of the Congolese people. The green triangle symbolizes the agriculture and rich forests, or the Congo and the red color was left unexplained, but it came to be associated with blood to symbolize the struggle of independence.