North Korea

North Korea is a "country" in East Asia that is basically a giant prison with less freedom. Its Supreme Leader, Kim Jong-un, arbitrarily bans things because they're harmful to his very authoritarian regime, because he doesn't like them, or because he felt like it. You can't escape, but who would want to leave such a glorious country as North Korea?

History
In 1910, Imperial Japan, in an effort to expand its "great" empire, annexed the Korean Peninsula. About 20 years later, it decided to begin the great process of conquering China by invading Manchuria. In 1937, the Emperor of Japan decided that massacres were cool, so the Imperial Japanese Army decided to rape and loot Nanjing, the capital of the Republic of China (which was Big Taiwan at the time), killing anywhere from 40,000 to 300,000 people (consensus is that the high score was 200,000).

This didn't turn out well for Japan, because it kinda lost World War II and was nuked. Twice. Afterward, the Korean Peninsula, like everything else that lost the war, was divided into a communist half and a capitalist half. Korea was split along the 38th parallel: the Communist Democratic People's Republic of Korea (North Korea) was set up as a Soviet puppet state, since Stalin had an ever-lingering distrust for the Capitalist West, and the Capitalist Republic of Korea (South Korea) was backed by the U.S., since U.S. foreign policy under President Harry Truman (who was the president) was to stop the spread of Communism, since he hated the Soviet Union. See where this is going?

In 1950, North Korea, backed by the Soviet Union, decided to fulfill its dream of being the one true Korea by invading South Korea. It would've very well succeeded had the U.S. and U.N. armies not launched a counteroffensive, pushing the Communist force back to the Chinese border. In the meantime, Big Taiwan had become just Taiwan and China was now the People's Republic of China, who didn't like the West, so the Chinese Army launched a counter-counteroffensive, pushing the U.S. and U.N. back below the 38th parallel. In retaliation, the U.S. and U.N. launched a counter-counter-counteroffensive, pushing back to around the 38th parallel. Fighting continued for two more years before both sides realized that the war was going nowhere and signed an armistice. Both Koreas still claim to be the one true Korea to this day.

North Korea was doing surprisingly well until the 1980s, when its economy stagnated. Then, the Soviet Union collapsed, bringing down North Korea's economy. After a great famine from 1994 to 1998, people living in North Korea left in waves. Afterward, instead of fixing his country's problems, Supreme Leader Kim Jong-il decided to build nukes. After Jong-il's death, his son, Supreme Leader Kim Jong-un continued North Korea's nuclear weapons program. Until a new law passed in 2022, Jong-un was sensible enough to not launch nukes right away if it were to be attacked. Not anymore. Prepare for the full wrath of the Democratic People's Republic of Korea.