War is fought with logistics. Tanks, planes, artillery, cars, and even the smallest battlefield units, infantry, all depend on logistics for their effectiveness.
No matter the vehicle or aircraft, without fuel, they are just a pile of scrap metal. Whether it's artillery or a single soldier, without ammunition, they are worthless—a simple truth.
An individual soldier can only carry so much ammunition, and once exhausted, they rely on logistics to resupply, not to mention the heavier equipment which has greater power but demands even more from logistics.
To operate five self-propelled artillery, a large amount of fuel must be prepared. The 2S19 weighs 44.5 tons and consumes about three hundred to four hundred liters of diesel per hundred kilometers on the march. During combat, fuel consumption jumps, with at least six hundred liters per hundred kilometers.
