The Alien Act 1705 was an act of the Parliament of England in February 1705, as a response to the Parliament of Scotland's Act of Security 1704, which in turn was partially a response to the English Act of Settlement 1701. Lord Godolphin, the Lord High Treasurer, was instrumental in the Union of 1707 and all the acts leading up to it. The act was passed to prevent the inconveniences that would occur hastily if these two Kingdoms were not to become one Union.