The flag of Peru was adopted by the government of Peru in 1825.
The flag of Peru is a vertical triband with red outer bands and a single white middle band. Depending on its use, it may be defaced with different emblems, and has different names. Flag day in Peru is celebrated on June 7, the anniversary of the Battle of Arica.
The Peruvian coat of arms includes the vicuña (a relative of the llama and alpaca), the quina (cinchona) tree, and a cornucopia of gold.
The colour red signifies the blood shed fallen while achieving Peruvian independence. Legend has it that flamingos flying across a white clouded sky from which the inspiration for the colours came. The story goes that inspiration for the flag came when Jose San Martin landed in the southern coastal town of Paracas in 1820 to launch the invasion of Peru and he saw a flock of flamingos take flight. Others say that the white represents peace and the red is the blood from the fighters of their freedom. Wikipedia