Naval Historywith Dr. Alex

Q&A · 3:09:02-3:10:44

Embargo, blockade, and maritime quarantine

A blockade stops all shipping, an embargo depends on participating states and commercial restrictions, and a quarantine invokes a health rationale.

Economic WarfareEmbargoesMaritime LawMerchant ShippingNaval Blockade
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Question

How can a naval embargo be distinguished from a naval blockade?

Short answer

If all ships are stopped it is a blockade; if nonparticipating neutral shipping can pass under commercial restrictions it is an embargo, while health restrictions are a quarantine.

Notes

The practical test is whether neutral ships from nonparticipating states can pass. The answer also shows how Britain supplemented interdiction in the First World War by outbidding German purchases in neutral markets, using commercial power to reinforce sea control.