Trump sanctions have swift impact but will world stop buying Russian oil and gas?

Analysts say presidents war on Russias fossil fuel revenues is a chance to bring peace to Ukraine and profit to USDonald Trumps stated mission to broker peace in Ukraine could come down to this simple question: can the US president convince the world to stop buying Russias fossil fuels?Last week, Trump imposed sanctions on Russias two largest oil companies, Rosneft and Lukoil, in an effort to damage Moscows ability to fund its war machine.