Looks to be dry for the Navy/Marines both on and off base with limited liberty.
http://www.cnn.com/2016/06/06/politics/us-navy-alcohol-ban-japan/index.html
http://www.cnn.com/2016/06/06/politics/us-navy-alcohol-ban-japan/index.html
The language in the article was vague but I wouldn't expect this to last too long. It is a symbolic move. Probably appropriate but primarily symbolic. A move like this will have devastating affects on the local Okinawa towns and their economy. I give it 30 days max.
Wonder if it's related to the Marine that killed an Okinawan and disposed of her body, which was followed by the release of a Okinawa training power point which was offensive....