Reports of a phone call between the US president-elect, Donald Trump, and his Russian counterpart, Vladimir Putin (although quickly denied by the Kremlin) have given a first flavour of the tone and direction of their relationship in the immediate future. According to the Washington Post, Trump spoke with Putin on November 7, warning him against any escalation in Ukraine and reminding him of "Washington's sizeable military presence in Europe".
Regardless of whether it happened or not, any - if even only indirect - exchange of messages between the pair should be heeded by America's allies in the west, as well as Russia's major partner in the east: China's Xi Jinping. And there has been plenty of such messaging over the past few months.
Putin, earlier on the day of the alleged phone call, gave a long address at the annual meeting of the Valdai Discussion Club thinktank in the Black Sea resort of Sochi. Unsurprisingly, the speech - and Putin's answers to questions from the audience afterwards - were anti-western and full of confidence that a new world order was now in "the phase of genuine creation".
But at the same time, Putin took pains to flatter Trump as a "courageous man", saying he'd consider any proposals from Trump aimed at restoring US-Russia relations and ending what Putin called the "Ukrainian crisis".
But he then spent considerably more time making the case for the relationship between Russia and China. Here his audience was less the incoming US president and more his old friend the Chinese president.
The reason for this goes back to one of Trump's messages to Putin and Xi. Trump told Tucker Carlson at a campaign event on October 31 that he would work to "un-unite" Russia and China. Trump implied that the two are "natural enemies" because Russia has vast territory that China covets for its population.
Russia and China have a history of conflict over territory along their long land border in Siberia. This was part of the Sino-Soviet split in the 1960s, which preceded the US opening to China under then-president Richard Nixon in the 1970s.
In contrast to Nixon, Trump looks set to try to reset US relations with Moscow rather than Beijing. While it's hard to imagine a similar split between Russia and China today, Trump's apparent desire to exploit discord between Russia and China to the advantage of the US should not be dismissed as completely unrealistic either.
On the face of it, Putin and Xi are closely aligned. But a deeper dive into the relationship between Russia and China suggests it's primarily one between their current leaders and lacks much of the institutional depth that other alliances have.
There is a lot of resentment of China in Russia in both public and policy circles. Russians remain wary of China's growing role in Central Asia and worry about the potential for disputes over long-contested borders. Many are also resentful of the fact that Moscow is now a junior partner to Beijing.
These are potentially all issues that Trump could use to drive a wedge between Russia and China. But a lot hinges on what Putin perceives is in it for Russia. This should be focusing minds in the west about what shape Trump's Ukraine policy will take and what this means for Ukraine and the west.
A Trump-brokered agreement is likely to involve the recognition of Russian territorial gains in Ukraine since 2014, complete sanctions relief and broad international rehabilitation granted to Moscow. It would surely also involve a down-scaling of the US commitment to Nato and a pledge not to pursue further enlargement of the alliance.
Trump might get a deal with Putin, but whether Putin would stick to it is questionable. Putin is much more likely to simply play both sides in the hope that Russia might in this way become a third peer alongside China and the US in an emerging new international order.
This is of course a complete fantasy given the size of the Russian economy alone, but unlikely to affect Putin's calculations, given his longing to restore Russia's superpower status.
Chinese leverage
An American opening to Moscow, as opposed to Beijing, is also difficult to imagine because America's European partners are unlikely to go along with it. Some, like Hungary's Viktor Orbán and Slovakia's Robert Fico might find the idea attractive in general, but Germany and France, among others in the EU, are more likely to want to make a deal with China.
The reason for this is economic - they have largely overcome their dependence on Russian oil and gas, but not on China as an export market.
Beijing, meanwhile, won't sit idly by while Trump tries to drive a wedge between Russia and China. Despite Putin's efforts to build parallel relations with North Korea and Iran, Xi retains plenty of economic leverage over Russia and is going to use it to keep Russia on side.
Diplomatically, Putin depends on Xi and China-led outfits such as the Shanghai Cooperation Organisation and the Brics. While there are differences between Moscow and Beijing, they also both share a world view of a US in terminal decline - which is now likely to be further accelerated by the upheaval expected from a second Trump term.
For China in particular, preventing the US from completely pivoting to the Indo-Pacific will be a key priority - and not allowing Trump to cut a deal with Putin at China's expense will be high on Xi's agenda as a means to achieving that end.
Trump might still try to open up to Russia by striking a deal with Putin over Ukraine. But such a deal with Putin is not the same as dividing Russia and China. On the contrary, it is more likely to "un-unite" Europe and the US and to further weaken the transatlantic alliance.
Rather than making America great again, Trump could further hasten its decline by mistaking the destruction of what is left of the liberal international order with its reshaping according to US interests.
Stefan Wolff, Professor of International Security, University of Birmingham
This article is republished from The Conversation under a Creative Commons license. Read the original article.