(maps, photos; aerial; ground) (2-10)
Circumstances sometimes make one or more of the reconnaissance methods impractical, or even impossible.
Large-scale maps may not be available; bad weather may ground aircraft; rugged terrain or enemy control may make
large areas inaccessible to ground parties. Whatever the conditions, the best combination of available methods is
used to provide maximum usable information in the time available.
Although ideally, the three reconnaissance methods are used to supplement each other, circumstances may
make one or two of the methods __________________________________.
Set 2-4. AERIAL RECONNAISSANCE
(supplement; obscured; measurements) (2-34)
In aerial reconnaissance, the terrain is viewed directly by an observer from aircraft. Aerial reconnaissance is
normally conducted as a follow-up to map reconnaissance, but it may be the only means of obtaining information in
a given area.
In aerial reconnaissance, the terrain is viewed ____________________________________ from aircraft. Map
reconnaissance is normally ________________________________ by aerial reconnaissance.