The Borealis in the second decade of December 2023 gets ready to leave Liverpool for the Classic Christmas Markets cruise. It will call at Zeebrugge, Amsterdam and Hamburg to take in some of Europe’s best festive markets. (Photo by Bav Media)

A mural depicting a resting cat by Russian street artist Vladi is photographed by a man outside a hotel in Hong Kong on November 27, 2023. (Photo by Peter Parks/AFP Photo)

Kamal Khatib, a volunteer with the Animals Lebanon rescue group, kisses kittens after rescuing them from debris of destroyed buildings at the site of Thursday's Israeli airstrike, in Beirut, Lebanon, Friday, October 11, 2024. (Photo by Bilal Hussein/AP Photo)

A reveller participates in a parade during a carnival to mark the annual Orthodox St. Vasilij Day, the beginning of the Orthodox New Year, in the village of Vevcani, North Macedonia, in this still image taken from a picture, on January 13, 2025. (Photo by Ognen Teofilovski/Reuters)

The picture dated May 14, 2025 shows the RAF Typhoon display pilot, Squadron Leader Nathan Shawyer, who has now completed his Public Display Authorisation, rehearsing over RAF Coningsby in Lincolnshire, UK ahead of this year's airshows. The RAF Typhoon display team will be participating in several airshows this year, including the Midlands Air Festival on May 30 and the English Riviera Airshow in Paignton Devon on May 31. (Photo by Claire Hartley/Bav Media)

A squirrel begs for food from a scooter driver in a park in Moscow on September 2, 2025. (Photo by Alexander Nemenov/AFP Photo)

U.S. Army soldiers with the 1st Battalion, 501st Infantry Regiment deployed to Combat Outpost Sabari, Afghanistan scan their area as they begin a multi-day air assault mission near the Pakistani border of eastern Afghanistan's Khost province May 2, 2012. (Photo by Staff Sgt. Joshua L. DeMotts/U.S. Air Force)

“Dover Castle is a medieval castle in the town of the same name in the English county of Kent. It was founded in the 12th century and has been described as the “Key to England” due to its defensive significance throughout history. It is the largest castle in England.

The outbreak of the Second World War in 1939 saw the tunnels converted first into an air-raid shelter and then later into a military command centre and underground hospital. In May 1940, Admiral Sir Bertram Ramsey directed the evacuation of French and British soldiers from Dunkirk, code-named Operation Dynamo, from his headquarters in the cliff tunnels”. – Wikipedia

Photo: The Repeater Station in the subterranean tunnels underneath Dover Castle, which has been restored by English Heritage for a public exhibition on June 3, 2011 in Dover, England. The evacuation of allied soldiers from Dunkirk was masterminded and co-ordinated from the secret command and control centre in the tunnels deep below the castle. (Photo by Matthew Lloyd/Getty Images)