Flag of Poland Flag of Poland The flag of Poland consists of two horizontal stripes of equal width, the upper one white and the lower one red. The two colors are defined in the Polish constitution as the national colors. A variant of the flag with the national coat of arms in the middle of the white stripe is legally reserved for official use abroad and at sea. A similar flag with the addition of a swallow-tail is used as the naval ensign of Poland. White and red were officially adopted as national colours in 1831. They are of heraldic origin and derive
Flag of the Netherlands flag in turn is believed to have influenced many flags of other Slavic countries, resulting in many red-white-blue styled tribands in other parts of Europe. Peter the Great of Russia was building a new Russian Navy mostly on Dutch standards; therefore the Russian merchant flag at sea would be the inverted colours of the Dutch flag. Flag of the Netherlands The flag of the Netherlands () is a horizontal tricolor of red, white, and blue. The tricolor flag is almost identical to that of Luxembourg, except that it is shorter and its red and blue stripes are a darker shade.