Why sea power could not prevent Austerlitz

British sea power kept trade moving, sustained the economy, and helped finance allies fighting Napoleon on land. Austerlitz shows the limit of that leverage: maritime strength could not compensate when coalition commanders let their forces become disorganized and walk into Napoleon's trap. The comparison with Wellington and Blücher suggests that stronger commanders would have recognized the danger. Napoleon won at Austerlitz only weeks after Trafalgar, and the Third Coalition continued into 1806 despite Britain's naval victory. The sequence ties naval success to the quality of coalition command ashore.