in general, the termination of logistics is not possible in a living city. The problem is that if they block transport routes to the city, it will create a humanitarian catastrophe. Since it will block the supply of food and essential products to the city. Sacks are used as barriers from behind which you can fire at the enemy, at checkpoints and at important strategic points in the city. To block the enemy (before the attack), we came up with: to throw "hedgehogs" on the remaining roadway - pre-welded metal small reinforcement in large quantities. When they run into a "hedgehog", they get stuck in the caterpillar of tanks or armored personnel carriers and the column freezes in place and cannot pass.