Which event proved that the policy of containment worked?

the british army and british colonist were by iroquois indians.

1. darius the great     persia  

2. piankhi       nubia

3. ezana       aksum

4.     nebuchadnezzar     babylonia

5. shalmaneser iii     assyria

b - those executed came from every social and economic class

the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.