Blizzard fans within Crimea are unable to access any Blizzard games that require a connection to Battle.net, after the US imposed trading & service restrictions to the country. In order to comply with the new regulations, Blizzard were forced to comply, freezing accounts and preventing access.
Users inside of Crimea were notified via email, when the service was frozen. “You are receiving this email because, in accordance with current trade regulations relating to the region of Crimea, we are legally required to suspend access to your Battle.net account. Any recurring subscription payment will be cancelled,” explains Blizzard. “We are sincerely sorry that you’re being impacted in this way; if the situation changes, we will happily do our best to restore access to your account.”
Blizzard aren’t the only company to suspend their services to Crimea over the Ukraine and Russian conflict: Google, Apple and PayPal have also done the same.