Brand new state mustabisha 2019

I think you meant to ask about the "Mustabaisha" state, which is not a real state. Mustabaisha is not a recognized sovereign state or a political entity.

However, if you meant to ask about a new state that was established in 2019, I'm not aware of any new states that were established in 2019. The last time a new state was established was in 2011, when South Sudan gained independence from Sudan.

If you could provide more context or clarify what you mean by "Mustabaisha" state, I'll do my best to help you.