Napoleon's greatest weakness; and perhaps a major reason for his ultimate defeat; is that he did not change tactics or strategy. His ability did not change, as he did not consider himself in need of adjustment. After the Battle of the Nile, when he inspired his men with a stirring speech, he abandoned them to return to France after their defeat by Lord Nelson. Similarly, when his Russian campaign failed, he again abandoned his troops. Napoleon had a remarkable ability to inspire loyalty among his men, even after his exile at Elba. He was a master strategist who personally dictated the placement of every gun and every regiment. His failure to adjust when necessary was a major factor in his downfall.