A variety of Polish flags are defined in current Polish national law, either through an act of parliament or a ministerial ordinance. Apart from the national flag (pictured), these are mostly military flags, used by one or all branches of the Polish Armed Forces, especially the Polish Navy. Most Polish flags feature white and red, the national colors of Poland. The national colors, officially adopted in 1831, are of heraldic origin and derive from the tinctures of the coats of arms of Poland and Lithuania. Additionally, some flags incorporate the white eagle of the Polish coat of arms, while other flags used by the Armed Forces incorporate military eagles, which are variants. Both variants of the national flag of Poland were officially adopted in 1919, shortly after Poland re-emerged as an independent state in the aftermath of World War I in 1918. Many Polish flags were adopted within the following three years. The stylization of the eagle changed from Neoclassicist to Baroque in 1927. (Full list...)