The 1618 to 1648 Thirty Years' War was fought primarily in modern Germany and Central Europe. Considered one of the most destructive conflicts in European history, combined estimates of military
As far as i know they reacted like other European governments of their time. First, simple suppression, but later on some adjustments to take accont of demands.
The Hundred Days Offensive Jul–Nov 1918 was the costliest
The Ludendorff offensive other wise known as the spring offensive was a German offensive on the Western Front intended to win the war before the American troops that had begun arriving in France could fully deploy.
I'm unsure of how far they advanced
Kaiserschlacht was the last German offensive and was a series of German attacks along the Western Front.