Whenever you see "i" it is Ukrainian, not Russian. Poster is depicting a nice solution assuring good neighborly relations. It includes 5 meters of nicely maintained ground for showing any tracks. I would guess that this section will be maintained daily by OP. The 3 meters wide ditch is complimented by 2 meters wide "hill like" structure which is blended into surroundings and it looks very nice, esp. during winter months. I can't share with you what is right in front of the ditch (2 sticks). This will be the actual "fence". If, and I doubt that if will ever happen, somebody will cross this fence OP will be able to see the tracks in the area he has to maintain. Towers with cameras are optional. OP's children may utilize them as "tree houses", or OP may survey neighbor's mowing operations from there and provide the immediate feedback to his neighbor with an optional bullhorn.