no–man's–land 
/ˈnoʊˌmænzˌlænd/ noun
/ˈnoʊˌmænzˌlænd/ noun [singular] : an area of land between two countries or armies that is not controlled by anyone — often used figuratively ▪ His music lies in the no-man's-land between jazz and rock. ▪ The downtown area was a no-man's-land of abandoned buildings and decay.
