countries in the coalition included prussia, russia, saxony, sweden, and great britain. several members of the coalition had previously been fighting france in the third coalition, and there wasn't any peace in between wars. on october 9, 1806, prussia joined a new coalition, fearing that france was becoming more powerful after it defeated austria and established the confederation of the rhine. prussia and russia prepared for a new campaign. prussian troops moved to saxony.