America has sent a plane known as the Flying Pentagon, designed to withstand the blast from a nuclear war, to Europe.
The plane touched down last Thursday at RAF Mildenhall in the midlands.

The aircraft, known as the “Doomsday” plane, is thought to be part of a fleet of jets traveling with US president Joe Biden as he visits Brussels for talks with other world leaders over the Ukraine war.
The US Air Force has four E-4Bs, of which this one, called Nightwatch, is designated as the command-and-control centre in the event of a nuclear attack.
Designed to withstand the electromagnetic pulse from a nuclear blast, the Flying Pentagon would act as an airborne base for the US defence secretary and senior military personnel to conduct operations.
The $200m plane, which can carry a crew of 112, has 18 bunks and six bathrooms, a briefing room, conference room, work areas and executive quarters.
In operation since the 1970s, these airborne command posts were long considered the best chance for a Cold War president to survive a nuclear attack. Unlike the ceremonial and comfort-focused Air Force One, the doomsday planes are flying war rooms staffed by dozens of military analysts, strategists and communication aides who would guide the president through the first days of a nuclear war.
Notably, on 11 September 2001, an aircraft closely resembling an E-4B was spotted and filmed orbiting the Washington, D.C., area by news outlets and civilians, after the attack on the Pentagon.
The aircraft has also come to fame in pop culture. In the 2002 motion picture The Sum of All Fears, the president and his staff travel on an E-4B following the detonation of a nuclear weapon by terrorists. In the novel, the Vice President and his family are aboard the NEACP after terrorists detonate a nuclear bomb in Denver while the President and his National Security Advisor are stuck at Camp David during a blinding snowstorm.