The Prussian Landwehr, the citizen militia improvised in 1813 and placed on an equal footing with the army of the line by the Defense Act of 1814, lasted in its original form for only five years. Its subordination to the regular army in 1819 has usually been seen as the victory of aristocrat over bourgeois, conservative over liberal, Potsdam over Weimar. This approach has been increasingly popular in recent years as scholars tend to study military history in its social and political context. The Landwehr's loss of status, however, reflected the circumstances of its origin as well as the malice of its enemies. The Defense Act of 1814 did not create a new institution; it formalized an existing one. The structure, the image, the character of the Landwehr had already been fixed and tempered by two years of battle. In those two years the Landwehr had established solid impressions of its potential as a military instrument among critics and supporters alike. It had established equally solid impressions of the best means of maintaining that potential.