I think that the oldest department in the executive branch is the United States federal executive departments
France, England, and Russia.
Answer:
C. The assassination of Archduke Franz Ferdinand in Sarajevo
Explanation:
As this assassination was done in Serbian territory, the Austrian-Hungarian government was extremely angered and used this event to bring Serbia into a fold. Obviously, Serbia did not accept the terms of Austria-Hungary and instead became allies with the Russian Empire.
Answer:
it's the great wall of china