The Siege of Roses or Siege of Rosas from 7 November to 5 December 1808 saw an Imperial French corps led by Laurent Gouvion Saint-Cyr invest a Catalan and Spanish garrison commanded Control by Peter O'Daly .

With 23,000 men , Gouvion Saint-Cyr moved Motion from the French border to relieve Assistance Duhesme 's troops .

The first obstacle to Gouvion Saint-Cyr 's mission was the haven of Rosas defended Defending by a large citadel with sea approaches defended Defending by a headland castle .

Gouvion Saint-Cyr still faced Confronting_problem the problem of getting Getting past Girona in order to succor Assistance Duhesme 's soldiers .

Moreau expanded Expansion his bridgehead , sending Sending Desaix north , Laurent Gouvion Saint-Cyr east and Pierre Marie Barthélemy Ferino south .