How does the open border agreement in the EU work in countries that border non-EU states, such as Russia

How does the open border agreement in the EU work in countries that border non-EU states, such as Russia?
For example, is there control on the side bordering a non-EU state? Or is the border control that of the country that is non-EU? Have you even heard of the Schengen Agreement? Idiot. The USA is far too scared of Russia.
Other - Politics & Government - 2 Answers
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1 :
brian, I used to live in soviet union, which is no more. But some things are the same - go and try just crossing Russian border... like Mexicans do in the USA... and I guarantee - you'll wand up with a bullet between your years. I am amazed at your level of knowledge... Are you like 12 years old?
2 :
The Schengen agreement works as follows: No borders between EU countries, the money saved is spent on tighter border controls to countries like Russia (border to Poland), Turkey and airport controls.