It operates by means of machine-gun and artillery fire. A tank is a vehicle made of metal. The special feature of this vehicle is that it can move across ditches. But on the Petrograd front there are many excellent highways along which an armoured car can move just as well as a tank. And a tank is just as incapable of crossing rivers and marshes as an armoured car Is.
Tanks play a big role in positional warfare.
In that type of warfare, where soldiers sit motionless in trenches on a particular sector of the front, tanks, which are capable of crawling across trenches, can do a lot of damage. All that is needed is for them to act all at once, in great masses, in tens and hundreds. But in our field warfare two or three tanks cannot play any serious role. It is due to their novelty. People are often frightened by something they have never seen before.