The Military Quarter will open at the following times per region:
Americas: Tuesday, August 5th at 11:59 PM PDT
Europe: Tuesday, August 5th at 11:59 PM CEST
Korea/Taiwan: Wednesday , August 6th at 12:59 AM KST / Tuesday, August 5th 11:59 PM CST
China: Tuesday, August 5th at 11:59 PM CST
(Americas Region) The cards that players can acquire in The Military Quarter will be featured on the official Hearthstone blog here once The Military Quarter is live in the Americas region.
Good luck and have fun acquiring new cards for your Hearthstone collection!