European dragon usually evil, much like dragon-like creatures of Greece and other dragons of Continental Europe; however, there are exceptions, and many do not want to go to battle unless they feel threatened. These serpents are limbless and wingless. The most famous sea serpent in Norse mythology is Jörmungandr, who is actually a giant born into the body of a serpent by the Norse god Loki, who will one day kill Thor, Norse god of thunder. The red dragon features on, and is the name of the national flag of Wales ("Y Ddraig Goch"). The symbol may originate in Arthurian Legend, or
Flag of Poland as the official shades of both colours expressed as coordinates in the CIE xyY (CIE 1931) colour space with the tolerated colour differences (ΔE) specified in the CIE 1976 ("L"*, "u"*, "v"*) colour space (CIELUV). The Constitution contains no mention of a national flag. Instead, the flag is defined by the Coat of Arms Act which specifies two variants of the national flag: the national flag of the Republic of Poland ("flaga państwowa Rzeczypospolitej Polskiej") and the national flag with coat of arms of the Republic of Poland ("flaga państwowa z godłem Rzeczypospolitej Polskiej"). Both flags are defined in Article