What was the name of the independent kingdom once formed by Japan's Ryukyu Island chain, which includes Okinawa and extends toward Taiwan?

The Korean cultural wave of pop music, drama, and film that has swept the world since the 2000s is known by what term?

Japan sits on the Pacific Ring of Fire and is one of the world's most volcanically active countries. Approximately how many active volcanoes does it have?

Which strait separates the Korean peninsula from Japan?

The Demilitarized Zone between North and South Korea runs roughly along which geographic line?

Jeju Island, South Korea's largest island, is famous for its female divers who harvest seafood by hand. What are they called?

In which South Korean city were the 2018 Winter Olympics held?

Japan's indigenous people, who have a distinct language, culture, and traditions from the ethnic Japanese majority, are known by what name?

The Yellow Sea lies between China and which peninsula?

North Korea's ruling ideology, a form of extreme self-reliance and nationalism developed by Kim Il-sung, is known by what name?