Russia

Russia, officially known as the Russian Federation, is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects.

History
Emil Blonsky was born here.

Anton Vanko was deported from the United States back to here after he helped to create Arc Reactor technology with Howard Stark.

Nick Fury roots out a double agent during the Cold War.

Natasha Romanoff was challenged by Sofia for the mantle of "Black Widow."

Ivan Vanko became Whiplash in order to take revenge on the Stark family by killing Tony Stark.

Black Widow was on a case when she was called by Phil Coulson to retrieve Bruce Banner.

Trivia

 * Black Widow was born in Russia.