The departments included Cause_to_be_included in the uprising Change_of_leadership , called Name_conferral the `` Vendée Militaire '' , included Cause_to_be_included the area between the Loire and the Layon rivers : Vendée ( Marais , Bocage Vendéen , Collines Vendéennes ) , part of Maine-et-Loire west of the Layon , and the portion of Deux-Sèvres west of the River Thouet .