Answer: Malaysia is the nation that lies on both the mainland and the islands of Southeast Asia.
Explanation: The Malay Peninsula, which connects to mainland Southeast Asia, is where Peninsular Malaysia, Malaysia's mainland portion, is situated. Two states, Sabah and Sarawak, which are situated on the island of Borneo, make up Malaysia's island region. Because it contains territory on both the Asian mainland and the island of Borneo, Malaysia is unique.