I Hold the Portal in My Hand, but I Just Want to Be a Fruit Shop Owner

The Protagonist Can Open a Portal and Lead the Country's Modern Army to Develop Another World.

I want to read a book similar to "Creating a Foreign World, I Lead the Country to Open Up Its Territories". Are there any books like this where the protagonist can open a portal to another world and then lead the country's army into the other world for development? I've been liking this kind of book lately.