No man’s land is territory whose ownership is unclear or under dispute and is often unoccupied. The term—then spelled “nonesmanneslond”—was likely first used in medieval Europe to describe a contested territory or refuse dumping ground between fiefdoms. During WWI, it was used to refer to the land between enemy trenches too dangerous to occupy, and during the Cold War, it became associated with territories near the Iron Curtain. What stretch of no man’s land is known as the “Cactus Curtain”? Discuss