Malaysia is a country of Southeast Asia. It consists of thirteen states and three federal territories. The country is composed of two regions separated by the South China Sea: Peninsular Malaysia and East Malaysia.Peninsular Malaysia, also called West Malaysia, is the part of the country that lies on the Malay Peninsular. It shares a land border with Thailand in the north. To the south is the island of Singapore. Across the Strait of Malacca to the west lies the island of Sumatra.East Malaysia, also known as Sabah and Sarawak or Malaysian Borneo, is the part of Malaysia located on the island of Borneo. It consists of the Malaysian states of Sabah and Sarawak, and the Federal Territories of Labuan. The two are separated by the South China Sea.