In the early days for the former captain of the guards of the kings fighting force, captain sir lord peter bodkins the third, retired from the force to open shop near a peaceful spot near his home to the south. He decided to supply metal to the former kingdom he once served to keep the nations fighting men well armed. On day a group of thugs looking for new weapons to cause chaos around the countryside discovered his location and now demands that he turns over the raw material he is mining, so that his men can start building weapons to rule with.
As businessman, he did not hire any troops to guard his small little working village for protection, because at the time it was no need. As threats continued, he receives good info on an attack soon coming upon them, and request that the king sends some men and what ever help he can bring to their defense. The King only sends one pike man soldier, one pole turner, and one leather tanner worker; he also builds a training camp, plus a armory building, and an engineer guild, to which the buildings are being leased and paid for by you from the king.
The King told you that if those buildings get destroyed you have to pay for them in full. Being that you have skills in archery, you build one for yourself next to them. As the threats get more and more potent, you just happen to train a few archers already and hired some local monks to help out. To keep everything in working order you dared not alert your people so that they don’t panic, so work as usual continues.