The Asian island country covering about 377,975 square kilometres is Japan.
Japan is an archipelago in East Asia stretching in an arc along the Pacific coast. Its territory includes four principal islands—Honshu, Hokkaido, Kyushu and Shikoku—along with Okinawa and thousands of smaller islands. The country’s area is commonly rounded to 377,975 square kilometres, though official measurements can differ slightly by year and surveying method.
Japan’s largest island is Honshu, home to Tokyo, Osaka, Kyoto and most of the country’s population and industry. Much of Japan is mountainous and forested, and the islands lie along the Pacific Ring of Fire, making earthquakes, volcanic activity and tsunamis important geographic features.
The figure refers to Japan’s national territory, not its much larger exclusive economic zone at sea. Another common mix-up is confusing Japan’s area with that of the Japanese archipelago in broader geographic descriptions; in trivia, the country answer is Japan.