Oil advanced as Iran-backed Houthi militants in Yemen entered the Middle East war and more US troops arrived in the region, raising fears the widening conflict will cause further chaos for energy markets. President Trump has ordered thousands of troops to the region, fanning fears of a risky ground invasion. The Opening Trade has everything you need to know as markets open across Europe. With analysis you won't find anywhere else, we break down the biggest stories of the day and speak to top