Modern strategic writing shows that the GIUK Gap did not lose relevance when the Cold War ended. Ships and submarines moving south must pass through its broad approaches, while Allied forces heading north are funnelled through the same waters. Effective control depends on secure island positions, persistent sensors, and states able to sustain air and naval operations from them. The distinction between regional and globally deployable medium powers also shows why logistics, transport, and overseas support matter as much as headline fleet size.
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Why the GIUK Gap remains strategically important
The gap remains a two-way gateway whose islands, bases, surveillance systems, and logistics connect northern waters with the wider Atlantic.