Earlier this year, there have been reports about the U.K.’s secret plan to relocate Queen Elizabeth amid the Brexit debate. This plan is reportedly a top secret shared among very few UK officials and is ready to be carried out as soon as the country withdraws from the European Union (EU). But what is this secret plan all about?

Originally dubbed as the Cold War emergency evacuation plan, this plan is meant to protect Queen Elizabeth and the royal family from turmoil once the U.K. crashes out of the EU. As the name suggests, the plan was originally crafted during the Cold War but was repurposed in the event of civil disorder following a no-deal Brexit.

The Brexit debate, which has been going on for a long time now and tackles the U.K.’s disorderly withdrawal from the international organization, is seen to result in a massive tumult in the country, particularly in London. When this happens, the British public and the British monarchy will find themselves caught in the middle of massive mayhem and violence.

While Queen Elizabeth has been mum about the whole Brexit hullaballoo, U.K. officials believe that there’s no way that Queen Elizabeth and the royal family can evade the issue, so the prospect of rushing Her Majesty to safety via an organized and well-thought-out evacuation plan is inevitable. While officials have no concern about the safety of the royal family at this point yet, evacuating the Queen and the other royal family members will be deemed necessary once their safety is already compromised.

The Cold War evacuation plan was first drawn up following fears of a Soviet nuclear attack during the 1960s. The plan becomes more relevant today as Russian leader Vladimir Putin previously declared that they would develop new intermediate-range weapons that were once prohibited by the Intermediate-Range Nuclear Forces Treaty. Both the U.S. and Russia have declared that they would no longer abide by the precepts of this treaty, making U.K. officials on high alert as to the safety of the country, most especially Queen Elizabeth and the royal family.

Dubbed as Operation Yellowhammer, the repurposed Cold War evacuation plan involves Queen Elizabeth’s relocation to an undisclosed territory. In the original plan, Queen Elizabeth and Prince Philip would be sneaked onto the royal yacht Britannia, which would hide in lochs off the coast of Scotland. The plan was to let the Queen and the Duke of Edinburgh lurk in the sea lochs of the Northwest Coast of the country, moving at night from one to another so the radars would not get to them. It remains to be seen if the renewed evacuation plan will follow the same route, but it’s still going to be a seaborne kind of escape.

Other details about the renewed evacuation plan remain unknown, but there are speculations that the undisclosed new relocation site for the Queen is a friendly Commonwealth territory. The Queen will exit the U.K. with the Home Secretary. During their escape, the Queen and the Home Secretary will hold a Privy Council and appoint a new British government out of the post-Brexit ruins.

  Queen Elizabeth Britain's Queen Elizabeth II (C) speaks with Australian Prime Minister Julia Gillard (L) at a banquet dinner during the Commonwealth Heads of Government Meeting (CHOGM) in Perth on October 28, 2011. RON D'RAINE/AFP/Getty Images