After annexing part of the territory of the Miruya Empire, the kingdom of Shangduohan had grown to over 200,000 square kilometers in size. Yet, for the Star Alliance, the occupation of Shangduohan took less than a week.
The 20th Combined Army, together with the 6th Assault Corps' Combined Army, captured vast swathes of Shangduohan territory in just a few days, seizing all of its major cities with their superior troop deployment capabilities.
All of Shangduohan was engulfed in the flames of war. The standing army of Shangduohan itself did not exceed 50,000 men; facing the Star Alliance forces, which were far superior both in numbers and technology, to say they crumbled at the first blow would be an understatement.