Quiberon Bay
The invasion plan received a crippling blow in November, when the French Brest Squadron was heavily defeated at the Battle of Quiberon Bay. Conflans had sailed from Brest on 15 November heading a hundred miles down the coast to Quiberon Bay, where the invasion army was now waiting to board his transports. Conflans' fleet became caught in a storm which slowed them down and allowed the pursuing British under Sir Edward Hawke a chance to catch up with them.