
1) Military strategy
Found on
https://www.crosswordclues.com/clue/interior-lines

Interior lines is a strategy of warfare that is based on the concept that lines of movement, communication, and supply within an area are shorter than those on the outside. As the area held by a defensive force shrinks, these advantages increase. Using the strategy of interior lines, a surrounded force can more easily supply, communicate, and move...
Found on
http://en.wikipedia.org/wiki/Interior_lines
No exact match found.