Completed the following sentence: In 1655, King Charles X Gustav began a
️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ The Swedish empire would be expanded, while the control of the lucrative Baltic Sea trade strengthened.<unk> The Swedish empire would be expanded, while the control of the lucrative Baltic Sea trade strengthened. However, the war against Poland was slow.<unk> However, the war against Poland was slow.<unk> However, the war against Poland was slow. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ The Poles resisted the Swedish troops, who were being ambushed constantly by Polish guerrilla units.<unk> The Poles resisted the Swedish troops, who were being ambushed constantly by Polish guerrilla units. <unk> <unk> <unk> <unk> Both Austria and the Netherlands sent military aid to Poland, and Sweden's former ally, Brandenburg-Prussia, changed sides during the conflict.<unk> Both Austria and the Netherlands sent military aid to Poland, and Sweden's former ally, Brandenburg-Prussia, changed sides during the conflict. ️<unk>️<unk>️<unk>️<unk>️<unk>️