I disagree-the situation had changed when Davout's outposts were driven in by Prussian cavalry on the afternoon of the 13th. Davout correctly interpreted this as a Prussian movement to the northwest through Naumburg and took action accordingly. He also gave Bernadotte a written copy of the order he received from Berthier at 0300 to Bernadotte at 0400.

Bernadotte chose not to support Davout and began a slow, leisurely march to Dornburg, an objective that was now not important as there was enemy activity and contact on Davout's front. A fight was coming, the only question was the size of the Prussian force. Bernadotte ducked the fight, and left Davout on his own. Whatever Bernadott'e 'motivation' for that decisions and a deliberate disobedience of a written order, he effectively kept I Corps out of the action on 14 October.

For a soldier, it is inexcusable. Bernadotte willfully abandoned a comrade in the face of the enemy and did nothing to contribute to the next day's actions.

Sincerely,
K