activity

all

allowing

america

and

antenna

big

but

chernobyl

continent

dream

duga

early

enemy

europe

even

extremely

firing

ground

height

horizon

length

let

literally

look

military

modern

network

north

not

one

only

over

overall

part

pearl

possible

potential

powerful

radar

radars

reconnaissance

rotation

see

small

soldiers

soviet

space

super

system

systems

targets

the

their

used

very

warning

was

watch

were