Complex sentence: Initially, the Navy Ministry was in charge of both administration and operational command of the Imperial Japanese Navy; however, with the creation of the Imperial Japanese Navy General Staff in May 1893, it was left with only administrative functions.
Split into simpler sentences: Initially, the Navy Ministry was in charge of both administration and operational command of the Imperial Japanese Navy. However, with the creation of the Imperial Japanese Navy General Staff in May 1893, it was left with only administrative functions.