Gunboat diplomacy: How classic naval coercion has evolved into hybrid warfare on the water

Over the summer, the United States deployed warships to the Caribbean—ostensibly to menace drug traffickers but also as a none-too-subtle warning to Venezuela. Earlier in the year, a U.S. Navy destroyer bobbed along waters close to Iran for similar reasons. And in the Taiwan Straits and Pacific, China and the U.S. frequently show off their respective maritime military might.

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