The Federated States of Micronesia (abbreviated FSM and also known simply as Micronesia) is an independent republic associated with the United States. It consists of four states – from west to east, Yap, Chuuk, Pohnpei and Kosrae – that are spread across the Western Pacific Ocean. Together, the states comprise around 607 islands (a combined land area of approximately 702 km2 or 271 sq mi) that cover a longitudinal distance of almost 2,700 km (1,678 mi) just north of the equator.