obstacle zone

obstacle zone

A division-level command and control measure, normally done graphically, to designate specific land areas where lower echelons are allowed to employ tactical obstacles. See also obstacle.
References in periodicals archive ?
Then at every 1k, competitors faced an obstacle zone, ranging from fun and inventive to tricky and tough.
Similarly, task-force-level engineer effort is normally contained within one obstacle zone and sometimes within one obstacle belt.
But what makes this race so different is the 10 fun and inventive obstacle zones competitors will tackle every kilometre along the course.