How is defence tech reshaping geopolitics? And what does the battlefield of the future look like? In the final episode of our series on the technological weapons of war, the FT’s innovation editor John Thornhill sits down with the FT’s industry correspondent Sylvia Pfeifer, deputy Beijing bureau chief Ryan McMorrow and US-China correspondent Demetri Sevastopulo. Clips: MCA/Universal Pictures, CCTV, NBC

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Tech Tonic is produced by Josh Gabert-Doyon and Persis Love. Edwin Lane is senior producer. Flo Phillips is the executive producer. Manuela Saragosa is the FT’s acting co-head of audio. Original music is by Metaphor Music. Samantha Giovinco and Breen Turner were the sound engineers for this season. This episode is dedicated to our engineer Joseph Salcedo, who tragically passed away last month.

Read a transcript of this episode on FT.com

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