Original sentence: Danish forces of Christian IV of Denmark had made landfall on Usedom and the adjacent mainland, where they faced the Imperial army commanded by Albrecht von Wallenstein.Ultimately, Christian's forces were defeated
Edited sentence: An imperial army commanded by Albrecht von Wallenstein left besieged Stralsund to confront Christian IV.Christian IV and a faction of his landing force were able to escape by ship.Danish forces of Christian IV of Denmark had made landfall on Usedom and the adjacent mainland, and expelled the imperial occupation forces.Ultimately, the Danish forces were defeated