If the UK is to present a credible deterrence to any adversary, its armed forces need to be sufficiently large. They are not. And the fastest, most economical, way of plugging the gap is by growing the reserves.

The Chief of the defence staff recently called for an 'all in mentality', urging civilians to step up to the very real threat posed by Russia.

Not 'weekend warriors', but people from high-tech industries and professions, skills the regular army lacks. He meant all of us. So, who could join the reserves, how quickly, and what would they get out of it?

Hosts: General Sir Patrick Sanders and Tom Newton Dunn

Guests: Elisabeth Braw and Peter Apps

Producer: Shabnam Grewal

Executive producer: Fiona Leach

Photo: Getty Images

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