BERLIN: Hundreds of thousands of people are expected to take to the streets across Germany on Saturday in protest against a massive transatlantic trade deal, dealing a new blow to the disputed accord. “We hope that more than 250,000 participants will join in the march nationwide,” said Roland Suess from the anti-globalization group Attac, one of the organizers of the demonstrations in seven German cities, including the capital Berlin and economic powerhouse Frankfurt. The European Union and the United States began negotiating the Transatlantic Trade and Investment Partnership (TTIP) in 2013, aiming to create the world’s biggest free trade market of 850 million consumers. A new round of talks are due to start in October and US President Barack Obama wants the deal concluded before he leaves office in January. A smaller version of TTIP is also in the works with Canada, and that deal, called CETA, is due to be signed in October.