 Complete the following phrase:  In the Baltics, Sweden was still at war with Poland, and in 1629 the temporary Truce of Altmark was made. In Germany, Gustav II Adolf joined the Thirty Years War between the Catholic emperor and the Protestant princes in 1630 after making landfall in Northern Germany. Swedens aim in the war was to support the German Protestants and strengthen its own position. However, Gustav II Adolf died in the 