small cameras mostly microphones attached to a emitter. which make radio waves that are picked up by a reserve.
i need help anwsering it to anyone know please help?
Scouting is spying on the enemy before a battle and was used to gather information to plan strategies.
In first world war people had planes that were mostly used for spying and taking pictures of the enemy maybe attacking but not heavy attack may be shooting.
Sal Dena has written: 'Spying on the enemy's camp' -- subject(s): Occultism and criminal investigation
Most Are Used For Spying And Stuff.
Spying methods
Treason
Communication Navigation Meteorology Spying
The correct spelling is "spying."
The closest thing I can think of which might answer this question is the trench periscope. It was like a pair of stationary binoculars, yet able to look above a trench like the periscope of a submarine. It was more like battlefield surveillance than spying.
The US Army has intelligence units and intelligence sections within each headquarters units who are responsible for gather information on enemy units, strengths, and movements. Spying, per se, is the venue of the CIA.
invisibility can be used to catch criminals and for spying.