In the feudal wars of Central Earth, it is normal for wars between kingdoms to drag on the front line for a year or so without a definitive result.
Even if one side is strong and the other weak, it takes a considerable amount of effort to completely eradicate a country.
Because in a war between countries, to break the enemy's defense lines, one must capture heavily garrisoned enemy cities, dismantle their military strongholds, and annihilate their defending armies to complete an invasion and conquest.
However,
The defending side naturally possesses a strong advantage.
Using tactics like siege and assault, unless the besieging force has tenfold the strength and is willing to pay any price, otherwise, sieging a city relies heavily on cutting off supplies until the enemy forces within collapse internally.
This process usually takes several months or more.
In some key cities, the stockpiled resources are enough to last for years.
So,
