Ah, at last he is facing the most problematic factor of having a huge territory - communications. In such a large piece of land, relaying orders and news fast enough is going to be a major pain until they invent radio..
Hmm it doesn't seem to be the right time to increase his Army size so much.
If I remember correctly he now has above 400000 soldiers in the 3 corp's which means his military spending should already exceeded 300000 which is an increase by 150000+.
Doing this while having a monthly for income from ~200000 paired with his spending plan on iron an coal.
Where does he take the money from?
Also what about the year end auction? The way he is spending right now he won't have any money for the auction.
I wish there would more explanation on this part from the author.
Endariel