The Imperial Japanese Navy Aviation Bureau (海軍航空本部 , Kaigun Kōkū Hombu ) of the Ministry of the Navy of Japan was responsible for the development and training of the Imperial Japanese Navy Air Service. In 1941 it was headed by Vice-Admiral Katagiri and was organized as follows:
Can we infer the following?
The Imperial Japanese Navy Aviation Bureau operated from 1941 to the present day.

Possible answers:
[I] Yes
[II] It's impossible to say
[III] No
The answer is:
[II]