Bismarck
SDSR took a policy decision to remove the FW MPA capability. It stated that the capability could be provided by other mean, including using Allied assets.
Not strictly true. It said that they had elected not bring the MRA4 into service. It then waffled on about how other assets would mitigate the gap in the required capability - anyone who really knew, knew that there wasn't any realistic way of mitigating the capability gap. Still never let the truth get in the way of the MoD spin machine. I see they are still trotting out the same hackneyed line every time some foreign MPA arrive at Lossiemouth outside of a major exercise!