attention
barb
barbed wire
blue
border
cable
construction
crime
crimea
danger
dangerous
electric
electrical
electricity
energy
equipment
fence
freedom
fresh
green
guard
high
industrial
industry
isolation
law
line
metal
nature
no people
nobody
observe
plant
power
prison
prisoner
sky
steel
structure
supply
technology
thorns
tower
tree
ukraine
voltage
war
watchtower
wire