iPhones in Europe/Asia, including Russia, are not subsidized by the phone carrier. That means they pay Full Price for the phones.
In China, that same $199 US-carrier subsidized iPhone is $860 USD.
In Russia, they are likely priced in Rubles, meaning the US Dollar equivalent has fallen by a bunch in recent weeks.
Apple raised the price of the iPhone 6 and 6 Plus by 25% last week. . . and the Ruble fell by 19% in just one day, this week. Ergo, Apple ceased sales.