"An RAF Nimrod MR2 on patrol in the skies over the North Pole, it is shown with two RN submarines just breaking through the ice.", MoD/Crown copyright 2002, Media ID 15230381.
Nimrod MR.2 XV235, submarine hunting, North Pole, 1995; Sgt Rick Brewell/RAF (Thunder & Lightnings - Hawker Siddeley Nimrod - History)
"The Nimrod on display at the Museum, XV235, started life as the original MR1 variant before being upgraded to MR2 standard. It saw active service during both Gulf Wars and also operated in the Arctic Circle, where it made a rendezvous with the submarines HMS Trenchant and USS Spadefish at the North Pole. The fuselage is an outdoor exhibit and is open to the public for cockpit tours."
(Avro Heritage Museum | Woodford | Nimrod XV235 Cockpit)
As you say, confusing.
**Edit to add a bit more:
USS Spadefish SSN-668 (foreground) and HMS Trenchant S-91 seen at the North Pole in 1992.
Sufficient info out there to identify all three vessels and approximate date.