The connection with most of the Earth was suddenly broken. The shocks did not affect only a small part, namely, 10% of the territory of Russia and partially neighboring territories. This part was called the "circle of life." People conducted a new frontier, set up a defensive perimeter and sent reconnaissance groups outside it. They realized that there was an attack on the Earth, as a result of which almost all living things perished. In order to repel the mysterious enemy, they mobilized the army, and built outposts beyond the perimeter.