Russian oil used to flow into Europe. Now, it's going to India and China instead. 
 
So, could Donald Trump's latest tariff threat against those countries put a squeeze on Russia's economic pipeline and help bring an end to the war in Ukraine? 
 
Despite the warm words and strong handshakes at their Alaskan summit, the Trump White House seems prepared to try new ways to hit Vladimir Putin in the pocket. 
 
But has the failure of the western sanction regime to cripple the Russian economy shown India and China that Trump's trade war bark is worse than his bite?  
On today's episode, Gareth Barlow speaks to Sky's economics and data editor Ed Conway about how the Russian energy landscape has changed and the potential impact on peace in Ukraine.  
 
Producer: Emily Hulme  
Editor: Mike Bovill