This province, along with the rest of the provinces owned by Ishiwara, appears to be equivalent to real-life Mainland China. Ishiwara Katsu is based on real-world Kanji Ishiwara.
If previous sectors acquired by negotiation:
What do you want? Are you here to form an alliance against the rest of the world?
If at least one sector taken by force:
My soldiers are experienced and fierce- and they show no mercy! They will butcher your men and carve the flesh from their bones!
The beaches will be painted red with the blood of your men!