Global diesel markets are facing fresh turmoil as the EU and US move forward with secondary sanctions and "secondary tariffs" on countries dealing with Russia. Brussels is still working out how, from the start of next year, it will ban so-called back door imports of fuels made using Russian crude in third countries like India and Turkey, while US President Donald Trump has already slapped an extra 25% tariff on all imports from India as punishment for what the US claims is "profiteering" off the war in Ukraine. The latest attempts to hit Russia will disrupt a significant portion of Europe's current diesel supply, with knock-on impacts around the world. Western leaders have made a significant shift in how they are handling Russian crude and products exports. The original G7 price caps on Russian crude and oil products were designed to keep supplies of critical products like diesel flowing, especially to Europe, while limiting the amount of money Moscow could raise to finance its war in Ukraine. Europe used to get more than half of its near 1 million barrels per day of diesel imports from Russia before a full ban on Russian fuel took effect in early 2023. Now, Europe lies at the center of a complex global web of replacement flows: The US and Saudi Arabia together account for more than half of current diesel arrivals, with significant volumes also coming from India, Turkey and Kuwait. Imports make up roughly 20% of Europe's diesel market but play an outsized role in determining regional and global fuel prices.