page_title: Standing Royal Navy deployments
section_title: Continuous At Sea Deterrent
hierarchical_section_title: Standing Royal Navy deployments / Global / Continuous At Sea Deterrent
caption_attribution_description: English: United States Trident II (D-5) missile underwater launch.
context_page_description: Standing Royal Navy deployments is a list of operations and commitments undertaken by the United Kingdom's Royal Navy on a worldwide basis. The following list details these commitments and deployments sorted by region and in alphabetical order. Routine deployments made by the Navy's nuclear-powered submarines and their location of operations is classified.
context_section_description: The Continuous At Sea Deterrent (CASD) (or Trident) is provided by the Royal Navy's four Vanguard-class submarines which deploy on a continuous basis around the globe. The Vanguard-class are each armed with a maximum of 16 Trident II D-5 submarine-launched ballistic missiles and 48 nuclear warheads.
caption: A Trident II D-5 ballistic missile launched from a Vanguard-class submarine
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