This time around Estonia invented an underground bunker made from large plastic tubes that connect together similar to Lego blocks, American defense and national security website Defense One reported.
"The concept is simple. Dig a trench, drop lay in the tube and cover it up," Defense One said.
The most basic model of a shelter, which houses 12 people underground, costs about $20,000. Bunkers are made from a polyethylene body that makes the bunker waterproof and can withstand temperatures from —50° C to +80° C, Euronews reported.
Meanwhile, more sophisticated models with showers and freezers cost more.
Previously the Estonian government announced it would build a wall on the border with Russia to fend of Russian "trespassers." The construction of the Estonian wall will begin in 2018. The project will be an expensive one. The total cost of the work is estimated to be around €71 million ($81.6 million). In addition, the Estonian Border Guard Board plans to install video cameras across the entire perimeter of the wall and set out patrol drones to detect trespassing "Russian invaders."
Amusingly, the barrier will also have an extra fence to prevent the movement of wildlife. Looks like Estonian border guards also want to keep Russian moose and bears from going into Estonia.
