zone of interior

American  

noun

1. the part of a theater of war not included in the theater of operations.

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Etymology

Origin of zone of interior

First recorded in 1930–35

Example Sentences

Although all the commanders of the zone of interior armies reported that Negroes had equal opportunity with whites to attend Army schools, in fact more than half of all the Army's courses were not open to black soldiers regardless of their qualifications.

From Project Gutenberg