Union Jack Union Jack The Union Jack, or Union Flag, is the national flag of the United Kingdom. The flag also has an official or semi-official status in some other Commonwealth realms: for example, it is a ceremonial flag in Canada by parliamentary resolution, and known there as the Royal Union Flag. Further, it is used as an official flag in some of the smaller British overseas territories. The Union Flag also appears in the canton (upper left-hand quarter) of the flags of several nations and territories that are former British possessions or dominions, as well as the state flag of Hawaii.
State flag are referred to as war flags and naval ensigns. In Australia, Brazil, the United States, and some other federal countries, the term state flag can have a different usage, as it frequently refers to an official flag of any of the individual states or territorial sub-divisions that make up the nation. To avoid confusion with the first meaning of the term, however, such a flag would be more precisely referred to as "the flag of the state of X", rather than "the state flag of X". For this usage, see also: State flag There are two separate meanings for the