The U.S. military has assembled a formidable armada in the Middle East, including two aircraft carrier strike groups and dozens of additional aircraft. It is the largest array of U.S. warplanes in the region since the 2003 invasion of Iraq. All signs suggest that military action against Iran could be imminent. The question is why. President Donald Trump isn’t explaining why he’s acting or what he hopes to achieve, so the world can only speculate.

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