Changing the voting system would leave defence expertise unresolved

Would replacing first past the post meaningfully improve British defence policy?

Electoral reform alone is not expected to solve the problem, because the criticism concerns inadequate understanding of defence across political parties.

Replacing first past the post is not expected to produce a meaningful improvement in defence policy by itself. The criticism concerns politicians' understanding of defence across the parties. Defence is treated as a national-security responsibility for which advice should be available to any party willing to seek it.