Relative Location of the Korean Peninsula: East Asia's Strategic Bridge

The Korean Peninsula projects southward from the Asian landmass between the Yellow Sea (West Sea) and the East Sea (Sea of Japan), forming a geopolitical pivot.

Coordinate Envelope

• Latitude: 33°–43° N (similar to Spain–Oregon).
• Longitude: 124°–132° E.
• Length: ~1,100 km (680 mi) N–S; width 216 km (134 mi) at narrowest (DMZ).

Maritime Boundaries

• West: Yellow Sea → China (Shandong Peninsula 200 km across).
• East: East Sea → Japan (Tsushima 50 km, Honshu 200 km).
• South: Korea Strait → Kyushu (Japan) 180 km.

Land Borders

• North: China (Yalu/Amnok River, 1,416 km) + Russia (Tumen River, 17 km).
• South: DMZ (250 km, 4 km wide) separates DPRK & ROK since 1953 armistice.

Strategic Implications

• Buffer/bridge: Historically contested by China, Japan, Russia, Mongols, Manchus.
• Trade: Busan (world #6 container port) links Pacific to Eurasia via TSR/TCR rail dreams.
• Security: U.S. forces in ROK; THAAD, missile defense, naval access.
• Climate: Continental winters (Siberian high), monsoon summers — agriculture & energy demand shaped by latitude.

The peninsula's location makes it a geopolitical keystone—control it, and you influence Northeast Asia's balance.