The National Trust for Places of Historic Interest or Natural Beauty is a charity and the largest membership organisation in the United Kingdom of Great Britain and Northern Ireland. The organisation’s president is HRH Prince Charles, the heir apparent to the British throne. Therefore, an acknowledgement of Marston’s sovereignty by the National Trust is by proxy an acknowledgment by the British Monarchy, and therefore the de facto sovereignty of Marston is seemingly recognised by the government of the United Kingdom.
The Head of State and her wife also booked up to have their names written on a microchip which will be voyaging to Mars with NASA in 2020. This marked the first step towards Marston as a space-fairing nation, and prompted the government to form MASA (Marston Air and Space Association).
Additionally, representatives of the Marston government have involved themselves with an organisation which hopes to persuade the UN to make a change to the Outer Space Treaty of 1967 so that land claims may be made on planet Mars. If this is successful, descendants of the Dr. Niamh Calderwood could one day inherit at least 25 square kilometres of Martian land.