The: War 4

: The protagonists, Joe and Asina, spend 150 years helping humans advance from the Iron Age to the brink of space travel to prepare for the "coming war".

In this sci-fi fantasy series, "preparing a piece" involves the long-term technological and societal advancement of a civilization to survive a demonic invasion. The War 4

: Coordinate artillery and air support to "soften" enemy positions before committing your main infantry or armored stacks. : The protagonists, Joe and Asina, spend 150