The noble Lord makes a point, but we should listen to the comments of the noble Lord, Lord West, who is far more of an expert than I am on this issue. He clearly stated that this is a worrying development.
We have focused on the F-35, but we have other legacy aircraft in NATO that we still operate on our eastern flanks. Are they equally vulnerable?
The noble and gallant Lord has spoken about an area on which I do not have information but, as he is aware, we are urging our NATO allies to reduce their reliance on legacy Russian and Soviet weaponry.