Guest: Rebecca Grant. The Arctic has become a battleground where Russia and China are increasing military cooperation, including bomber flights and naval exercises. The U.S. needs to expand its fleet of icebreakers and sensors to counter threats, such as

Guest: Rebecca Grant. The Arctic has become a battleground where Russia and China are increasing military cooperation, including bomber flights and naval exercises. The U.S. needs to expand its fleet of icebreakers and sensors to counter threats, such as Chinese ballistic missile submarines potentially operating under the ice.

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