Why did the Roman Emperor Diocletian divide the roman empire into two parts?

Emperor Diocletian divided the Roman Empire into two parts to improve administrative efficiency and enhance governance amid growing challenges such as military threats and economic instability. By creating the Eastern and Western Roman Empires, he aimed to facilitate better local management and quicker responses to crises. This division also allowed for the establishment of the tetrarchy, where multiple leaders could share power and responsibilities, thereby strengthening the empire’s overall stability.