US President Joe Biden thanked German Chancellor Olaf Scholz for his contribution to the large-scale prisoner exchange with Russia involving 26 detainees and several countries. “I particularly owe a great sense of gratitude to the chancellor,” Biden said during a press conference in Washington on Thursday. “The demands [Russia was] making of me required me to get some significant concessions from Germany, which they originally concluded they could not do because of the person in question,” Biden said. But in the end, Germany made its contribution, as did several other countries involved in the…