I'm an urban warfare tactics trainer, specializing in tracking.

Commercial warfare was to be avoided because of the cost.

Despite its superior weapons and mode of warfare, the German east Baltic colony was constantly in danger of being overborne by the endless assaults of the dogged aborigines, whose hatred of the religion of the Cross as preached by the knights is very intelligible; and in 1218 Bishop Albert of Riga was driven to appeal for assistance to King Valdemar.

During these two or three years of incessant political intrigue and warfare it was not to be expected that the Lateran council should accomplish much.

The warfare which followed was like that which Saul and David waged against the Philistines.