On Thursday, Britain marked the first anniversary of the Trinity House agreement with Germany.
The deal will see German P8 submarine-hunting planes being based at RAF Lossiemouth in Scotland, flying operations to track Vladimir Putin’s underwater fleet in the North Atlantic, as well as the development of long-range “deep-strike” missiles and enhanced cyber systems.
As part of the agreement, discussions over nuclear capabilities will also take place. However, a defence source said this was a “long way” from “sharing nuclear weapons”.