US flies nuclear bombs to Britain.

“The new nuclear bombs which are now based at Lakenheath are entirely under the control of Donald Trump and could be used without the UK having any say at all in the matter.

August 17, 2025 by beyondnuclearinternational

Nukewatch UK reveals how US nuclear gravity bombs were deployed on US soil for the first time in 17 years

By Peter Burt

US nuclear bombs were delivered to Lakenheath air base on Thursday 17 July as part of NATO plans to deploy new battlefield nuclear nuclear weapons intended for war-fighting in Europe. The following is an examination of how we know this, with an update also below.

The flight

The arrival of a special flight transporting the bombs was observed by Nukewatch UK, who judge that the evidence publicly available from our observations and flight-tracking data now supports the conclusion that nuclear weapons are based at the Lakenheath US air base in Suffolk. This article explains how the weapons were brought to Lakenheath by the US Air Force and sets out the evidence which indicates they are now stationed at the British base.

Shortly after 7 am local time on Tuesday 15 July a giant C-17 Globemaster transport aircraft, flight number RCH4574 (‘Reach 4574’), assigned to the US Air Force’s 62nd Airlift Wing left Joint Base Lewis–McChord, its home base in Washington state. The 62nd Airlift Wing is an elite, highly trained transport unit which serves as the US Air Force’s Prime Nuclear Airlift Force: the only Air Force section tasked with the role of supporting the US Department of Defence and Department of Energy with their nuclear airlift operations. The aircraft undertaking the flight was a C-17 with the serial number 08-8200, flying on high priority mission with the air force mission number PAM112271196.

The aircraft flew across the continental United States to Kirtland Air Force Base in Albuquerque, New Mexico – the hub of the US Air Force’s nuclear operations, where the largest nuclear weapons storage facility in the world is located: the Kirtland Underground Munitions Maintenance and Storage Complex(KUMMSC). KUMMSC stores a significant portion of the US nuclear arsenal, including gravity bombs and warheads.

At Kirtland the aircraft almost certainly loaded up with a cargo of anything up to 20 newly manufactured B61-12 nuclear weapons – a new, modernised version of the US Air Force’s principal nuclear gravity bomb with greater accuracy than older variants of the weapon. Manufacturing of the B61-12 variant was completed in December 2024 and the weapon is currently being rolled out on deployment. Whilst at Kirtland the aircraft was parked on Pad 5 – the section of the airbase designated for handling hazardous cargoes. Other aircraft at the airport were given a warning not to overfly the aircraft on Pad 5 for a period of over five hours, which ended only once the C-17 had departed.

Mid evening local time on Wednesday 16 July Reach 4574 took off, with the pilot reminding the ground controller that the aircraft has “haz cargo” on board. The aircraft flew through the night across the Atlantic Ocean, rendezvousing with two KC-46 tanker aircraft from Pease Air National Guard Base and McGuire Air Force Base to refuel over the ocean east of New York.

In a co-ordinated operation, a second C-17 aircraft (aircraft number 09-9211, flight number RCH4205, mission number PAM112472196) also left Lewis-McChord on 15 July and flew to Ramstein Air Force Base in Germany (stopping briefly at Lakenheath) to be on standby in the event of a failure or emergency involving the primary aircraft. This standby aircraft may have been loaded with nuclear emergency response equipment for dealing with an accident involving the primary aircraft.

Reach 4574 approached the UK flying south of Ireland, then flew up the Bristol Channel, cut across north Devon, and flew north west along a corridor taking it close to Oxford and Milton Keynes, but avoiding overflying major centres of population. The plane landed at Lakenheath air base at 12.50 local time.

Unloading the bombs

Nukewatch UK was able to observe the aircraft landing and unloading from outside the Lakenheath base. During the unloading operation base security was at an unusually high level, with USAF security patrols and police cars undertaking patrols inside the base’s security fence and plain-clothed (but badged) personnel from the Air Force Office of Special Investigations patrolling outside the base……………………………………………………………………………………………..

Nukewatch UK believes that this C-17 aircraft was transporting a batch of B61-12 nuclear weapons to Lakenheath. Our reasons for arriving at this conclusion are given below.

US nuclear weapons in Europe

The 62nd Airlift Wing regularly conducts Prime Nuclear Airlift Force missions across the Atlantic to transport materials and equipment to air bases in Europe which support NATO’s nuclear mission in Europe, under which B61 bombs are stored at US bases in Europe and bases of European nations which take part in NATO nuclear-sharing arrangements with the US. Nukewatch has been actively tracking these flights for three years, and has used archived tracking data to analyse flights since the beginning of 2020. Over this period missions have included occasional operations which have been unusually complex, involving up to seven aircraft as stand-bys and for in-flight refuelling. In addition to operations involving nuclear weapons, the unit also conducts missions transporting special nuclear materials which visit several NATO nuclear bases in Europe in sequence, and also conducts missions involving training with ground personnel at several nuclear bases.

It is possible that the earliest of these missions were training and rehearsal flights for the delivery of new B61-12 nuclear bombs to Europe, with more recent flights actually transporting the nuclear bombs across the Atlantic for deployment at bases in Europe. Nukewatch has observed that Lakenheath has been involved in many of these missions, initially as a location for basing a stand-by aircraft in Europe – possibly for use by a nuclear emergency response team. More recently Lakenheath appears to have been involved in a series of ‘work up’ exercises and security drills involving aircraft from 62 Airlift Wing to prepare the base for the arrival of nuclear weapons, culminating in a large-scale exercise over two days on 10 – 11 June 2025 which may have been a dress rehearsal for the nuclear delivery operation. ………………………………………………………………………………………………………………………………………

What we think

Speaking on the delivery of US B61-12 nuclear weapons to Lakenheath, Juliet McBride of Nukewatch UK said:

“The new nuclear bombs which are now based at Lakenheath are entirely under the control of Donald Trump and could be used without the UK having any say at all in the matter. In fact, we wonder whether the UK government has even been notified by the US Air Force that the weapons are now stationed at Lakenheath.

“The nuclear weapons now stored at Lakenheath have an explosive power of up to 50 kilotons. For comparison, the atom bomb that devastated Hiroshima in 1945 had an explosive yield of 15 kilotons. Far from protecting Europeans during wartime, these nuclear weapons would contribute to turning Europe into a radioactive wasteland.

“Despite the significant issues and risks involved in basing these weapons of mass destruction in Europe, neither the US nor the UK government have bothered to inform citizens or Parliament that they have been deployed here. Nukewatch UK believes that UK citizens have a right to know that these preparations for fighting a nuclear war are under way, and we will continue to report on nuclear movements to Lakenheath and other European nuclear bases”.

Update: Second nuclear flight arrives at Lakenheath

Following a delivery of nuclear weapons to Lakenheath US air base in Suffolk on 17-18 July 2025, a second Prime Nuclear Airlift force flew to Lakenheath on 24-25 July to delivery a high priority hazardous cargo……………………………………………………………………….

Nukewatch concludes the following:

A high security unloading operation for hazardous materials took place at Lakenheath.
The operation seemed to follow slightly different procedures to the one observed the previous week.
Nevertheless, the degree of security and general circumstances of the flight seem to indicate that a nuclear-related load was probably delivered in the aircraft. This may have been components and equipment related to nuclear weapons, or possibly weapons themselves.
Between four to six loads seemed to be transported away from the aircraft in small convoys to a location on the airbase nearby.
Assuming two or three transporting vehicles in each convoy, and each convoy carried one nuclear bomb, this suggests that between around 8 and 18 ‘units’ of cargo were delivered by this flight. https://beyondnuclearinternational.org/2025/08/17/us-flies-nuclear-bombs-to-britain/