Durand Line Pakistan and Afghanistan S
iegfried Line Germany and France.
Hindenburg Line Germany and Poland.
17th Parallel North and South Vietnam
Mac Mohan Line India and China
24th Parallel India and Pakistan
Maginot Line France and Germany.
Oder Neisse Line East Germany and Poland.
38th Parallel North and South Korea
Radcliffe Line India and Pakistan
49th Parallel U.S.A. and Canada