I looked it up on Google and did some research and I found the answer should be Nubia.
Answer:
How Checks and Balances Work The U.S. government exercises checks and balances through its three branches— the legislative, executive, and judicial branches. It operates as a constitutionally limited government and is bound to the principles and actions that are authorized by the federal—and corresponding state—constitution.
Explanation:
The correct answer is: "the Berlin Wall".
The Berlin Wall was built in 1961 in order to separate the Soviet-ruled Eastern part of the city that was comprised in the denominated German Democratic Republic, and the Western area of the city which had been put under the control of the Western Allied powers (UK, US and France) at the end of WWII and which was part of the Federal Republic of Germany at the moment of the construction of the wall.
In the Cold War scenario, the German Democratic Republic was under the influence of the URSS and therefore pertained to the Eastern bloc, while the Federal Republic of Germany was influenced by the US and the capitalist Western Powers. These two blocs, the Eastern and Western ones were divided by the so-called "iron curtain" (term used by Churchill).
<u>The Berlin Wall was a physicall barrrier that materialized the methaporical division expressed by the term "iron curtain".</u>
It shows how you are serious about not only your cute but the future of your society.