Diablo III Global Play FAQ
With Battle.net®’s Global Play functionality, you’ll have access to Diablo® III game servers in regions outside your own, making it easy to play with your friends in other parts of the world.

In general, you’ll be playing in your “home” game region, defined as follows:

The Americas  for players in North America, Latin America, Australia, New Zealand, and Southeast Asia
Europe for players in the European Union, Eastern Europe, Russia, Africa, and Middle Eastern countries such as Israel and the United Arab Emirates
Asia for players in South Korea and the regions of Taiwan, Hong Kong, and Macau

yeah...

Sos

READ the freaking 1st page before asking the same questions again and again, I myself losing patience here =.=