It had been widely known that Archess was a kingdom that had the strongest army on the Maldava continent, while Terra was inferior in terms of army strength.
After having been invaded by the Valthian Empire, Terra focused on strengthening its navy forces.
Reinvigorating the navy was necessary because Terra was located on a peninsula, so control of the seas was essential for a victory on land, especially in the southern sea, the Russcean Sea, which was the borderline between Terra and Valthian.
Besides, it had been reported that the Valthian Empire had not given up on conquering Terra although they had been subdued by the joint forces between the Terran and Archessan armies, under General Canillas von Rodega as the army commander.