On What Really Matters, Walter Russell Mead discusses the United States cutting off intelligence sharing with Ukraine, shutting down American consulates overseas, and President Donald Trump’s tariffs on US allies and enemies.

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A woman walks past a television screen showing a news broadcast of a North Korean military parade showcasing a record number of nuclear and intercontinental ballistic missiles in Seoul on February 9, 2023. (Jung Yeon-je/AFP via Getty Images)