The Siege of Kantan
Nothing is perfectly clear right now. Therefore, making a full analysis at this stage doesn't make much sense. However, I just want to point out a few things.
Shin and the HSU have reached Kantan. They will most likely lay siege to it. At the start of the war, Shin had 40k soldiers, excluding the former Han troops. He took his entire army with him and left his rear completely to Yoko Yoko. We must also consider the casualties he took along the way. At best, Shin has around 30k to 40k troops right now.
There are two possibilities here:
First: Shin and Ten are incredibly stupid. Ou Sen had 200k men during the Gyou Campaign. Even he couldn't take Zhao's second-largest city through a direct siege. Yet, Shin and Ten somehow think they can take the capital Kantan with much fewer men and in a much shorter time.
Second: Kantan can actually be captured with this number of troops. If this is true, then Ou Sen's entire locust strategy and everything at Gyou Campaign is complete trash.
If either of these two scenarios turns out to be true, it will completely destroy the internal dynamics of the series.
Therefore, I am thinking, or rather hoping for a third option. Maybe Shin and Ten are executing a strategy to lure Ri Boku into a trap. Or perhaps Shou Hei Kun or Ou Sen strictly ordered them to attack Kantan no matter the cost. Frankly, I can't think of any other reasonable scenario.
There are also people claiming that Ri Boku set a trap. We will probably see a trap. But Ri Boku himself has stated multiple times that Shin is highly unpredictable. If Ri Boku actually designed a plan that leaves his own capital completely alone with Shin, that would be another level of absolute nonsense. I won't even mention the absurdity of Shin and Ten actually falling for this trap.