<span>To become a citizen of the United States, a person must B. have been born or naturalized in the United States.
If you are born in the US, you are an American citizen. However, that's not the only way to become one - you can also become naturalized, meaning that you either marry an American and get spouse citizenship, or work there for a certain period of time so you can apply for citizenship. These other options (C and D) don't affect your citizenship at all.
</span>
During the neolithic revolution, the need of getting a reliable source out of the resources around was of great importance. Since the resources are scarce, an organization of how to harness the resources was a challenge. This was how the power play of politics and division emerged during that era.
Through the many wars and peace congresses of the 18th century, European diplomacy strove to maintain a balance between five great powers: Britain, France, Austria, Russia, and Prussia. At the century’s end, however, the French Revolution, France’s efforts to export it, and the attempts of Napoleon I to conquer Europe first unbalanced and then overthrew the continent’s state system. After Napoleon’s defeat, the Congress of Vienna was convened in 1814–15 to set new boundaries, re-create the balance of power, and guard against future French hegemony. It also dealt with international problems internationally, taking up issues such as rivers, the slave trade, and the rules of diplomacy. The Final Act of Vienna of 1815, as amended at the Congress of Aix-la-Chapelle (Aachen) in 1818, established four classes of heads of diplomatic missions—precedence within each class being determined by the date of presentation of credentials—and a system for signing treaties in French alphabetical order by country name. Thus ended the battles over precedence. Unwritten rules also were established. At Vienna, for example, a distinction was made between great powers and “powers with limited interests.” Only great powers exchanged ambassadors. Until 1893 the United States had no ambassadors; like those of other lesser states, its envoys were only ministers.
It started because of the Cold War between America and the USSR. The Cold War started because the USSR thought America wanted the whole world to be capitalist and America thought the uSSR wanted the whole world to be communist.
