Rumors held that Spain, other coalition powers, or even restored Bourbon France might join a continuing North American war to challenge Napoleon's sale of Louisiana. This was a possible diplomatic and military outcome rather than a settled plan. For France's restored monarchy, an expedition could also remove former Napoleonic soldiers from domestic politics by sending them far from France. The European peace settlement, colonial claims, and postwar demobilization could therefore have intersected with an unfinished American conflict.
Notable Point · 1:52:43-1:54:02
Could the post-Napoleonic settlement reopen the Louisiana Purchase?
Renewed European claims to the Louisiana Purchase were a speculative post-1814 possibility that linked diplomacy to the problem of demobilizing Napoleon's veterans.