How wide should a protection zone be? to secure the Strait of Hormuz from Iran's illegal threat?

How many miles thick, for the long protection layer, around the strait should be managed by an international union of: Oman Qatar Saudi and emirates, on the iran side, to prevent iran using its coast and boats to illegally disturb shipping?

Reference When Egypt stole Suez canal

What else should be done to secure safe shipping from iran threat?

How wide should a protection zone be? to secure the Strait of Hormuz from Iran's illegal threat?
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