China
china
Russia does not share an eastern border with anyone, but it is on the coast of the Bering Sea and just across that is the US state of Alaska.
The answer is Canada but its not Russia cause then it would be the west
Canada to the east and across the Bering Straight is Russia.
The Amur River flows mostly through China, but a portion flows through Russia and along the border of China and eastern Russia.
The U. S. - Canadian border goes almost coast to coast across North America, from the Pacific Ocean to the eastern border of Maine, plus the eastern border of Alaska.
The only Middle Eastern country is Iran. The countries that border the Caspian Sea are Russia, Kazakhstan, Turkmenistan, Azerbaijan, and Iran.
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Russia - approximately 25 miles across the Bering Strait to the Diomede Islands, Russia, or 50 miles to mainland Russia.
Both Norway and Finland have Russia on their eastern borders. Finland has the longer border, but is not considered culturally Scandinavian.
Canada and there is a maritime border with Russia.
The Capital of Russia, Moscow is on the Eastern Hemisphere. It's border is on the line between the Eastern and Western Hemisphere.
Pennsylvania is a state in the US. Russia is a country in Asia and Europe, which are different continents from North America, which contains the US. Russia can't possibly border Pennsylvania.