thumb|upright=1.2|Wellington at the battle of Waterloo. Detail of The Battle of Waterloo by Jan Willem Pieneman, 1824. The campaign led to numerous other controversies. Issues concerning Wellington's troop dispositions prior to Napoleon's invasion of the Netherlands, whether Wellington misled or betrayed Blücher by promising, then failing, to come directly to Blücher's aid at Ligny, and credit for the victory between Wellington and the Prussians. These and other such issues concerning Blücher's, Wellington's, and Napoleon's decisions during the campaign were the subject of a strategic-level study by the Prussian political-military theorist Carl von Clausewitz, Feldzug von 1815: Strategische Uebersicht des Feldzugs von 1815, (English title: The Campaign of 1815: Strategic Overview of the Campaign.) This study was Clausewitz's last such work and is widely considered to be the best example of Clausewitz's mature theories concerning such analyses. It attracted the attention of Wellington's staff, who prompted the Duke to write a published essay on the campaign (other than his immediate, official after-action report, "The Waterloo Dispatch".) This was published as the 1842 "Memorandum on the Battle of Waterloo". While Wellington disputed Clausewitz on several points, Clausewitz largely absolved Wellington of accusations levelled against him. This exchange with Clausewitz was quite famous in Britain in the 19th century, particularly in Charles Cornwallis Chesney's work the Waterloo Lectures, but was largely ignored in the 20th century due to hostilities between Britain and Germany.
thumb|upright=12|Wellington at the battle of Waterloo Detail of The Battle of Waterloo by Jan Willem Pieneman 1824 The campaign led to numerous other controversies Issues concerning Wellington's troop dispositions prior to Napoleon's invasion of the Netherlands whether Wellington misled or betrayed Blücher by promising then failing to come directly to Blücher's aid at Ligny and credit for the victory between Wellington and the Prussians These and other such issues concerning Blücher's Wellington's and Napoleon's decisions during the campaign were the subject of a strategic-level study by the Prussian political-military theorist Carl von Clausewitz Feldzug von 1815 Strategische Uebersicht des Feldzugs von 1815 (English title The Campaign of 1815 Strategic Overview of the Campaign) This study was Clausewitz's last such work and is widely considered to be the best example of Clausewitz's mature theories concerning such analyses It attracted the attention of Wellington's staff who prompted the Duke to write a published essay on the campaign (other than his immediate official after-action report "The Waterloo Dispatch") This was published as the 1842 "Memorandum on the Battle of Waterloo" While Wellington disputed Clausewitz on several points Clausewitz largely absolved Wellington of accusations levelled against him This exchange with Clausewitz was quite famous in Britain in the 19th century particularly in Charles Cornwallis Chesney's work the Waterloo Lectures but was largely ignored in the 20th century due to hostilities between Britain and Germany