Soult assigned General of Division Honor Charles Reille on the right flank to lead the 7th and 9th Divisions during the Battle of Bidassoa.
Deciding that the coastal sector was the strongest part of his line, Soult posted General of Division Honore Charles Reille and 10,550 men to defend that sector. Reille's command included General of Division Antoine Louis Popon de Maucune's 3,996-strong 7th Division and General of Division Pierre Francois Xavier Boyer's 6,515-strong 9th Division. Believing his coastal sector secure, Soult held the right flank with a relatively weak force while concentrating most of his strength on his left flank in the mountains. 
