I believe it is Viceroyalties. Hope that helps
The correct answer to this open question is the following.
Although there were no options attached, we can say the following.
The reason why permanent forts were established in the Oklahoma territory was that they served as military posts and headquarters. It was a time when notorious differences existed between white Americans and Native American Indians. Many legislations had been approved to move the Native Indians from their original lands and were moved to the Indian territory, modern-day Oklahoma.
Among the most famous forts built in the Oklahoma territory were the forts of Gibson, Reno, Davis, Towson, and Sill.
So, to post a picture of your questions, you should see what looks like a paper clip on the bottom of the ask a question page. Your going to click on that and it should either take you to your files or photos. From there, click the desired photo and it should be there when you post your question. If this still does not work let me know. Hope I helped!