Does the Trump administration have a grand strategy at work in Iran and Venezuela? Maybe. It's hard to say what this administration is thinking, for three related reasons: The thinking of a lot of disparate people goes into a war-making decision; the president himself is a man of instincts, interests, and improvisations, not ideas or strategy; and there has been so little effort to publicly explain or justify what they're doing (in good part because they're not asking Congress or anyone else for permission). So instead of making unsupported assertions, it's more sensible to discuss possible grand-strategic thinking that may ...

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