Civilization V: The Swedish Saga, part 2 (430 A.D. to 1702 A.D.)

The Alliance fractures

1640 A.D.: A new wave of missionaries brings about the Second Awesome Awakening in Vienna, returning it to a majority-Awesomenist city.

To the East, Denmark declares war on Germany, led by a Great General.

1650 A.D.: Salzburg, an originally Austrian city held by Germany for centuries, is captured by the Danes. Germany is once again reduced to its capital of Hamburg.

1655 A.D.: The Danes drop out of the Continental Alliance, citing Austria's grievances with Sweden.

Not. Good. The Danes have a pretty strong military right now, and if they allied with Austria against me, I would be at war with two of the three civs directly bordering me.