U.S. President Barack Obama shook the hand of Cuban President Raul Castro at a memorial to Nelson Mandela on Tuesday, an unprecedented gesture between the leaders of two nations which have been at loggerheads for more than half a century. <br /><br />Castro smiled as Obama shook his hand on the way to the podium to make a speech at the commemoration for former South African President Mandela, one of the world’s greatest peacemakers who died on Thursday.<br /><br />Quite a moment: Reuters captures handshake between Obama & #Cuba's Castro. #Mandela pic.twitter.com/CitceMcRzQ— Jon Williams (WilliamsJon) 10 Décembre 2013<br /><br /><br />Reuters
