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.
Answer:
“The great questions of our time will not be settled by resolutions and by majority votes—that was the mistake of 1848 and 1849—but by blood and iron.”
Explanation:
Otto Von Bismark was also called Iron chancellor because of the stress he laid on the military advancement for the unification of Germany. He made a speech on 30 September 1882 which became his most remarkable speech and it was named 'Blood and Iron Speech', holding the last words of the speech. While the Prussian House of Representative reluctant to approve military spending, wished by the King, Bismark was chosen as Foreign minister to solve the issue regarding the unification of Germany.
Many people consider fear to be the most influential factor in Mitchell Palmer's campaign.