no man’s land
noun /ˈnəʊ mænz lænd/
/ˈnəʊ mænz lænd/
[uncountable, singular]- an area of land between the borders of two countries or between two armies, that is not controlled by eitherWord OriginMiddle English: originally the name of a plot of ground lying outside the north wall of the city of London, the site of a place of execution.