The best seasons to attack the northern border were winter and early spring.
During the winter, the common people would often close their city gates and stay in their homes.
It was far too risky to go out hunting, and even more terrible if they accidentally got injured. And if somehow they managed to survive that, frostbite was the silent killer.
Precisely because of this, the women tended to get pregnant during these times.
The moment the early spring arrived, they would be quick to leave their homes to search for work and hoard food for the next winter.
The cattle, sheep, and even the beasts were famished during this time. It left them in a weakened state.
The horses were too weak to even run. If this war were somehow prolonged until spring, it would only bring more disaster.
Famished, weak, and enraged, they were the perfect blend for internal riots.
If Darius hadn't prepared for warm clothes and food in advance, the situation would have been much worse already.
