By mid September 1761, after the capture of Platen by the Russians, the small Prussian corps under the command of Stutterheim had been ordered to leave Western Pomerania and to take position at Stettin.
On September 15, according to his orders, Stutterheim marched towards Stettin.
This left only Belling's corps to defend Western Pomerania against the Swedes.

By this date, the Swedes had, at Wollin and in Pomerania, a total of 13,791 men (including 3,098 cavalry with 2,988 horses, and 1,152 infantrymen counting Nylands Infantry who served with the artillery).
The departure of Stutterheim offered to Ehrensvärd the opportunity to retake the initiative and to launch another offensive against Belling's small force.
The Swedish army concentrated in 2 columns, one under Lybecker, the other under Sprengtporten, and advanced on Belling's corps in a pincer movement.

On September 17, Belling tried to stop Lybecker's column, engaging it at the battle of Kosabroma.
His attack nearly succeeded but he was forced to retire leaving Goltz at Kosabroma to delay Lybecker.

On September 18, Belling withdrew towards Rothemühl where 2 grenadier bns, sent from Stettin as reinforcements, were supposed to join him.
The same day, Sprengtporten's vanguard pursued Knobelsdorf's detachment (200 infantry, 50 hussars) which had been defending Ferdinandshof.
Knobelsdorf skirmished with light troops of the Swedish vanguard (Frikompanie Lundberg and Silverstolpe) while retreating on Rothemühl.
On his way, Knobelsdorf had been reinforced by 2 Freicompanien from Stettin who delayed the Swedes pursuit.
Sprengtporten sent 1 bn of Skaraborg Regiment towards Rothemühl while he marched to Torgelow with the rest of his column.
By mid September 1761, after the capture of Platen by the Russians, the small Prussian corps under the command of Stutterheim had been ordered to leave Western Pomerania and to take position at Stettin. On September 15, according to his orders, Stutterheim marched towards Stettin. This left only Belling's corps to defend Western Pomerania against the Swedes.
By this date, the Swedes had, at Wollin and in Pomerania, a total of 13,791 men (including 3,098 cavalry with 2,988 horses, and 1,152 infantrymen counting Nylands Infantry who served with the artillery). The departure of Stutterheim offered to Ehrensvärd the opportunity to retake the initiative and to launch another offensive against Belling's small force. The Swedish army concentrated in 2 columns, one under Lybecker, the other under Sprengtporten, and advanced on Belling's corps in a pincer movement.
On September 17, Belling tried to stop Lybecker's column, engaging it at the battle of Kosabroma. His attack nearly succeeded but he was forced to retire leaving Goltz at Kosabroma to delay Lybecker.
On September 18, Belling withdrew towards Rothemühl where 2 grenadier bns, sent from Stettin as reinforcements, were supposed to join him. The same day, Sprengtporten's vanguard pursued Knobelsdorf's detachment (200 infantry, 50 hussars) which had been defending Ferdinandshof. Knobelsdorf skirmished with light troops of the Swedish vanguard (Frikompanie Lundberg and Silverstolpe) while retreating on Rothemühl. On his way, Knobelsdorf had been reinforced by 2 Freicompanien from Stettin who delayed the Swedes pursuit. Sprengtporten sent 1 bn of Skaraborg Regiment towards Rothemühl while he marched to Torgelow with the rest of his column.
Battle of Neuensund