Question: What was the name of the evacuation operation that the RNLB Guide of Dunkirk was used in?
Sentence (from "Operation Ariel"): British and Allied ships were covered from French bases by five Royal Air Force (RAF) fighter squadrons and assisted by aircraft based in England to lift British, Polish and Czech troops, civilians and equipment from Atlantic ports, particularly from St Nazaire and Nantes.
Relevant evidence: No