The current flag of Bolivia was originally adopted by Bolivia in 1851.
The state flag and ensign (and war flag) is a horizontal tricolor of red, yellow, and green with the Bolivian coat of arms in the center. According to one source, the red stands for Bolivia’s brave soldiers, while the green symbolizes fertility and yellow the nation’s mineral deposits.
According to the new constitution, the Wiphala is considered a national symbol of Bolivia (along with the flag, national anthem, coat of arms, the cockade; kantuta flower and patujú flower).
Despite its landlocked status, Bolivia has a naval ensign used by navy vessels on rivers and lakes. It consists of a blue field with the state flag in the canton bordered by nine small yellow five-pointed stars, with a larger yellow five-pointed star in the fly. The nine small stars represent the nine departments of Bolivia, and the larger star the nation’s right to access the sea (access that it lost in 1884 in the War of the Pacific). Wikipedia