Is Russia Prepping Their Military to Fight the U.S.?

The Russian military doctrine that was adopted in 2010 after the "reset" with the Obama administration considers the U.S. and North Atlantic Treaty Organization, also known as NATO, the main threats that Moscow must be prepared to fight. 

Recent events have underscored the prospect due to the firing of Russian Defense Minister Anatoly Serdyukov, who had served under the then President Dmity Medvedev, who just so happens to be the Russian Prime Minister right now. 

The Russian President Vladimir Putin had replaced Serdyukov with Sergei Shoigu who seems to be more on the same page as Putin when it comes to his outlook on the future role and capabilities of the Russian military. 

Serdyukov seemed to have a different approach under Medvedev, his approach was to more closely work with the west in an effort to obtain Western technologies and to modernize the military. 

All of that seems to have disappeared now that Putin has a more confrontational approach with the U.S.