Quote Originally Posted by King Henry V
New Orleans and Toulouse were both pointless battles, as they were fought after the peace treaties had been signed.
yes, Toulouse, that's a good one! forgotten that one.

Perhaps Grouchy's pointlessly successful engagement on 19th June 1815 with the Prussian rearguard at Wavre (the day after Waterloo had been lost) would be appropriate too; the 'last battle' of the Napoleonic wars.