Radar is used. it locates all, not just enemy aircraft.
One thing that terrified Anne most at night were air raids (the anit-aircraft fire), and the other thing terrified everyone: Break-ins downstairs.
Well, technically, they're the same thing. But I suppose you could say that an arch enemy is a forever enemy, as an enemy may just be your enemy for a few days.
aircraft
Night
megatheriam the giant ground sloth was sometimes an enemy and the terror birds were enemys too
Swamp Thing - 1990 Natural Enemy 1-8 is rated/received certificates of: USA:TV-G
Because the aircraft was adapted by the Imperial Navy in 1940 (it entered service in 1941)...the last number indicating the aircraft's model number. The US does the same thing; the M1 rifle was adapted in 1941, therefore, it's the model 1.
An aircraft can benefit a military by preforming reconaissance. After the enemy figured that they could do the same thing, there were two guys in the air. Later, the reconaissance planes started shooting at each other. Some guy later figured that having a plane dedicated to destroying reconaissance planes would be nice to have, so he designed the first fighter. Later, some other aircraft freak decided to build some big airplane to lug mail and people and cargo around. Somebody later developed helicopters and used them as giant lugs to pull around cargo and have some designed to blast the enemy's tanks.
Thing
It's generally an artillery gun designed to fire shells straight forward into the sky to shoot down aircraft. The shells generally exploded next to enemy planes. German AA guns shot down over 37,000 Allied bombers. Anti aircraft shells have flack or pieces of metal material when they explode this material flys out in many directions something similar to a fragmentation grenade
I guess I thing because you can't touch the night and a place you can touch it
this depends on what you mean by "aircraft". If you mean any flying thing that is capable of bearing a man, that would date to as early as the 1700s. but if you mean a controlled, powered, flyable thing, December 1903.