Ewald notified Blücher that he was prepared to defend his nation's neutrality by force. Battle Most of Blücher's army spent the night in Lübeck. To protect his south flank, the Prussian general posted a dragoon regiment and half of a horse artillery battery at Moisling. General-Major Balthasar Wilhelm Christoph von (Jung-)Larisch with the 2nd Division of II Corps guarded the Trave north of the city. Blücher's rearguard under Oswald remained outside the northern gate, while a regiment of hussars stayed outside the southern gate. Lübeck was once heavily fortified, but by 1806, its defenses were partially dismantled. Nevertheless, the wet ditches in front of its old walls presented a serious obstacle to an attacker. East of the Trave, there were three gates into the city. The northern gate, known as the Burgtor, overlooked a narrow strip of land between the Trave and Wakenitz Rivers. The southern gate was called the Mühlentor (Mills Gate) and the eastern gate was named the Hüxtertor. On the west bank of the Trave, there was only one gate, the Holstentor. The Wakenitz protected much of the eastern side of the town. At the Burgtor, Blücher packed eight guns into a semicircular fortification in front of the gate and added two more cannons near the gate. He placed four more guns on the Bellevue bastion on the west bank in order to take any attackers under a crossfire. In addition to Oswald's rear guard, other infantry were available to defend the position. Blücher put the Burgtor sector under the command of General-Major Frederick William, Duke of Brunswick-Wolfenbüttel. He defended the Mühlentor with four or five battalions plus a 6-pounder battery. The Hoxtertor was held by an infantry regiment, two horse artillery guns, and four regimental pieces. Other troops remained in reserve under General-Major Hans Christoph von Natzmer, so that a total of 17 battalions and 52 guns defended Lübeck. When a delegation of city fathers reminded Blücher of his promise not to do battle in the city, the Prussian brushed them off, vowing that he would fight. Natzmer's 1st Division included the Infantry Regiments Tschammer Nr. 27, Kauffberg Nr. 51, Natzmer Nr. 54, and Manstein Nr. 55, two battalions each, the Hertzberg Dragoon Regiment Nr. 9, five squadrons, one foot artillery battery, and half of a horse artillery battery. Larisch's 2nd Division contained the Infantry Regiments Kalckreuth Nr. 4, Owstein Nr. 7, and Jung-Larisch Nr. 53,