HMS Defender has been re-routed from a previous mission in the Pacific
royal navy
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British government
UK to send third Royal Navy warship to Gulf
Britain has already sent the HMS Duncan, an air defence destroyer, to cover for frigate HMS Montrose while it undergoes maintenance in nearby Bahrain
british army
UK currently has 1,500 military personnel in the Middle East, says defence official
Top British defence official said it was part of normal operations and not linked to tensions with Iran