The amount of ammunition being consumed in the Russo-Ukrainian conflict has surpassed all estimates. This is starting to put pressure on the production and supply chains involved in the manufacture of ammunition for artillery guns among other weapons systems.
This is not an unprecedented problem. In warfare throughout history, armies have often underestimated the level of force and destruction of equipment that will be encountered and the amount of ammunition that will be consumed.
Time and again, this has affected military planning. For example, a lack of shells for British artillery in the first world war resulted in a crisis that led to the downfall of the government of Herbert Asquith.