against Germany but we beat them in a friendly this year and once you get on the pitch they are the just the opponent," said Klinsmann, who won the World Cup as a player in 1990.
France, who qualified via the playoffs, will be pleased with a Group E placing alongside Ecuador, Switzerland and Honduras.
"It could have been more complicated," said coach Didier Deschamps.
"We know Switzerland well, they were seeded so obviously the toughest opponent. We don't know Ecuador and Honduras that well and it will have an influence on our preparation."
Bosnia, the only one of the 32 teams taking part in their first World Cup finals, will have a dream start to their World Cup adventure as they kick off against Argentina in the Maracana before facing Iran and Nigeria.
"Argentina are the group favourites and it will be a very special occasion for us to play our opening match against them at the Maracana Stadium," said coach Safet Susic.
"We should have an even chance alongside Nigeria to clinch the runners-up spot, although no one should underestimate Iran either."
Fancied Belgium head up Group H alongside Algeria, Russia and South Korea while Group C,, containing Colombia, Greece, Ivory Coast and Japan, looks the toughest to predict.
The final is in Rio on July 13.