 The White Ensign
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Worn by all HM ships which are in commission and by some shore bases. |
 The Blue Ensign
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Worn by government vessels which aren't warships. Also used by merchant vessels. |
 The Red Ensign
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Worn by all British registered vessels. |
 Royal Fleet Auxilliary
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Worn by civilian manned vessels which follow HM fleet with necessary supplies. |
 The Union Flag
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Worn as a Jack on the bow of all HM ships in commission. This is when the flag is called a Union Jack. |
 Sea Scout Defaced Ensign
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The red ensign is also used by Sea Scout Groups. A RN Recognised Group can wear a defaced ensign |
