US President Barack Obama and Russian counterpart Dmitry Medvedev signed a new version of the Strategic Arms Reduction Treaty (START) at Prague Castle, the Czech president's residence.
Američki predsednik Barak Obama i njegov ruski kolega Dmitri Medvedev potpisali su novu verziju Sporazuma o smanjenju strateškog naoružanja u Praškom zamku, rezidenciji češkog predsednika.