Europe Welcomes Trade Steps With U.S. but Many Questions Remain

The details of how the accord meant to avoid a trade war will be executed remain unclear

BRUSSELS—European officials on Thursday hailed a deal with the U.S. to avert a trade war despite a lack of details that could derail the vague accord and upend efforts to resolve outstanding issues.

President Donald Trump and European Commission President Jean-Claude Juncker on Wednesday said EU members would buy U.S. liquefied natural gas and soybeans in return for a U.S. pledge not to impose new tariffs on European vehicles.

Washington...