Vietnam: A Southeast Asian Peninsula Nation, Not an Island

Vietnam is emphatically not an island nation. It is a coastal country occupying the eastern and southern edge of the Indochinese Peninsula in mainland Southeast Asia. Its long, S-shaped coastline—over 3,200 km (2,000 mi)—borders the South China Sea (referred to as the East Sea in Vietnam) to the east and south.

Land Borders Define the Nation

Vietnam shares land borders with three countries:

• China to the north (1,281 km)
• Laos to the northwest (2,161 km)
• Cambodia to the southwest (1,228 km)

This continental geography has shaped Vietnam's history: overland trade routes, cultural exchange with China and India, and land-based conflicts (including the Vietnam War, which spilled into Laos and Cambodia). While Vietnam administers numerous offshore islands (Phu Quoc, Con Dao, the Paracels, and Spratlys), its territory, population centers, and economic core are firmly mainland.