A system in which states agree to form a national government, but maintain their sovereignty
Answer:
checks and balances. I believe that is what you want
Explanation:
counterbalancing influences by which an organization or system is regulated, typically those ensuring that political power is not concentrated in the hands of individuals or groups.
Answer:
Tsarism was threatened by the 1905 Revolution but Nicholas II remained staunchly committed to the autocracy. As a result, the events of 1905 were followed by a period of tsarist reaction led by chief minister Pyotr Stolypin, where promised reforms were wound back and revolutionary groups were suppressed.
Boston??? It twas the city of boston