3 ways a Russia-China axis is seeking to undermine the West

Reuters/Sergei Karpukhin

Russia's President Vladimir Putin (R) and China's President Xi Jinping arrive to a documents signing ceremony during their meeting at the Kremlin in Moscow, Russia May 8, 2015.

As Chinese President Xi Jinping prepares to host the annual G20 summit next month, it's no secret that Russian President Vladimir Putin will be the top guest.

Come September 4, leaders of the world's biggest economies will gather in Hangzhou, China, to discuss business, trade, and a range of foreign-policy challenges.

"Russia and China now cooperate and coordinate to an unprecedented degree - politically, militarily, economically - and their cooperation carries anti-American and anti-Western ramifications," authors Douglas Schoen and Melik Kaylan wrote in "The Russia-China Axis."

"In short, there is a new Cold War in progress, with our old adversaries back in the game, more powerful than they have been for decades, and with America more confused and tentative than it has been since the Carter years."

Here's a look at a few ways the Russia-China axis operates against American and Western interests.