H.R. McMaster appears on CBS News’ Face the Nation to discuss American foreign policy for 2023, including the Chinese Communist Party's increasingly warlike stance and the failure of the Iran nuclear deal.

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Gunners from the Armed Forces of Ukraine fire at Russian position with a 155 mm self-propelled howitzer 2C22 in the Kharkiv region on April 21, 2024. (Anatolii Stepanov/AFP via Getty Images)