Denmark was a Lutheran/Protestant country at the time of the 30 Years' War. After the recent victory of the Catholics, Denmark felt that it's sovereignty as a Protestant country would be threatened. Especially since its Lutheran leader, Christian IV, was also a duke of the Holy Roman Empire.
The Danish built an armt of 35'000 men, and were one of the most stable, wealthy countries in Europe. This was thanks to France and England, who agreed to subsidize the war, and Sweden, who paid Denmark massive war reparations.
Ferdinand II needed more soldiers in order to defeat the Danes and their Protestant forces, so employed the help of Bohemian nobleman, Albrecht von Wallenstein. Wallenstein agreed to give Ferdinand between 30'000-100'000 soldiers in return for the right to plunder captured territories.
When Christian invaded he had no idea of the forces Ferdinand had amassed. Due to this, and the weakness of all his allies, Christian was defeated.
Wallenstein then took his army north, taking many Danish towns as he went. He tried to take the Danish island-capital of Zealand but did not have a fleet. No one would help him build one so he tried to take Stralsund, a strong Baltic port with the means to build a large fleet.
But things became difficult for both Wallenstein and Christian so they decided to negotiate. The Treaty of Lübek was made in 1629, and stated that Christian could keep control of Denmark if he withdrew his support for the Protestant Germanic states, which he did.
The Danish intervention led to the Catholics becoming stronger, gaining more land, a better reputation as fighters, and the support of Wallenstin. The Protestants, however were left scattered. France and Sweden were at war, and England and Denmark were greatly weakened by war.
The Danish built an armt of 35'000 men, and were one of the most stable, wealthy countries in Europe. This was thanks to France and England, who agreed to subsidize the war, and Sweden, who paid Denmark massive war reparations.
Ferdinand II needed more soldiers in order to defeat the Danes and their Protestant forces, so employed the help of Bohemian nobleman, Albrecht von Wallenstein. Wallenstein agreed to give Ferdinand between 30'000-100'000 soldiers in return for the right to plunder captured territories.
When Christian invaded he had no idea of the forces Ferdinand had amassed. Due to this, and the weakness of all his allies, Christian was defeated.
Wallenstein then took his army north, taking many Danish towns as he went. He tried to take the Danish island-capital of Zealand but did not have a fleet. No one would help him build one so he tried to take Stralsund, a strong Baltic port with the means to build a large fleet.
But things became difficult for both Wallenstein and Christian so they decided to negotiate. The Treaty of Lübek was made in 1629, and stated that Christian could keep control of Denmark if he withdrew his support for the Protestant Germanic states, which he did.
The Danish intervention led to the Catholics becoming stronger, gaining more land, a better reputation as fighters, and the support of Wallenstin. The Protestants, however were left scattered. France and Sweden were at war, and England and Denmark were greatly weakened by war.