Tonga
oceaniaredwhitecross
Adopted in 1875, the flag of Tonga features a red field with a white canton containing a red cross. The cross represents Christianity, which is deeply important to Tongan culture, while the red symbolizes the blood of Christ. The flag's design is protected by the constitution and can never be changed.
Tonga's constitution states that the national flag can never be altered, making it one of the most legally protected flag designs in the world.
Adopted: 1875
