The Sovereign of Australia is currently Queen Elizabeth II. She is also the Sovereign of fifteen other Commonwealth Realms including the United Kingdom. Like the other Dominions, Australia gained legislative independence from the Parliament of the United Kingdom through the Statute of Westminster 1931. This came into force in Australia in 1942, but back dated to 3 September 1939. With the Royal Style and Titles Act 1953, the Australian Parliament gave the Queen the title Queen of Australia. In 1973 her Australian title no longer included her status as Queen of the United Kingdom and Defender of the Faith.