Possible Clues:

• Inchon's home: Abbr.
• ''M*A*S*H'' setting: Abbr.
• Site of 19 Across: abbr.
• Divided Asian country: abbr.
• It was split in 1948: Abbr.
• Map of Asia abbreviation
• Joseon Dynasty country: Abbr.
• Split Asian peninsula (Abbr.)
• Hebrew measure
• Split land in Asia, for short