Spanish socialist Teresa Ribera Rodríguez was confirmed today as the next EU Commissioner for competition.

Starting December 1, she will helm what is seen as the world’s most aggressive antitrust enforcer, the Brussels-based EU Directorate-General for Competition, and lead the almost 900 staffers who run antitrust investigations and regularly issue million-euro fines at the end of those lengthy investigations to large companies both in the EU and the U.S.