The British naval boats were sent to Jersey yesterday after France threatened to cut off the power to the island.

Boris Johnson has sent two gunboats to Jersey as French boats gather to protest over Brexit fishing rights.
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The UK has sent British gunboats to Jersey amid tensions with France ...

https://www.businessinsider.com/brexit-uk-sends-gunboats-jersey-france-cut-power-boats-protest-2021-5

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