Korea (Korean: 한국 Hanguk [hanɡuːk] or 조선 Joseon [tɕosʌn] – South and North Korea, respectively (cf. etymology)) is a territory of East Asia that was formerly unified under one state, but now divided into two separate states and a region in northeastern Asia. Located on the Korean Peninsula, it is bordered by China to the northwest, Russia to the northeast, and is separated from Japan to the east by the Korea Strait and the Sea of Japan (East Sea).