Flag of Hawaii in command of the H.M.S. Discovery. During the Visit Vancouver met with Kamehameha I and presented him with a Red Ensign. At this time Ireland was not part of a united kingdom which meant the union jack did not contain Saint Patrick's Cross. This version of the Red Ensign, as well as the current version which added the cross in 1801, was the unofficial flag of the Kingdom of Hawaii until 1816. An adviser to Kamehameha noted that the Union Flag could draw Hawaii into international conflict, as his kingdom could be seen as an ally of the United Kingdom,
Union Jack the Union Jack was treated as its official flag. The continued use of the Union Jack as national flag became an issue in the 1920s, when the government proposed to introduce a National Flag of the Union. A compromise was reached in which both flags were flown on official buildings. The Union Nationality and Flags Act 1927 provided that the flags of the Union were (a) the Union Jack, to denote the association with the other members of the British Commonwealth of Nations, and (b) the new National Flag. The Union Jack was to be flown alongside the National Flag