 Complete the following phrase:  In 1612, when Charles IX of Swedens son Gustavus Adolphus of Sweden Gustav II Adolf had just been appointed king, the two units had about 200 cavalry riders each and were well trained and organized. These cavalry units would become the backbone of the kings successful military tactics, inspired by the new Polish hussars of the effective light-hussar units during the Thirty Years War and the Polish-Swedish War. In 1626, he reorganized the Swedish Army completely into independent fighting units called squadrons composed of four mounted-rider Hussar companies, with 100 riders each, fighting next to infantry units dragoon. The newly named regiment units were The Riders of Uppland, which recruited from Uppland, Västmanland, and Värmland, and The Riders of Södermanland which recruited from Södermanland and Närke. They had two squadrons each. In the 