The dwarves made a major breakthrough in science. They have discovered how to make nuclear power and are using it to make weapons. This new technology has made them even more isolationist to prevent others from learning about their work. This power is thought to come from another world, as they have captured people from outside this land with no knowledge of magic. These strange people have taught them how to make machines like tanks, mechs, guns, and aircraft. These new pieces of knowledge combined with their metallurgy has made the dwarves reach past modern technology in the current time, with some even working on teleportion and chronomancy technology.