Estados Unidos bloquea 1.200 habitaciones en hoteles de Madrid para la cumbre de la OTAN

US Vice President Joe Biden (L) is introduced to Australian Defence Force personnel by Air Chief Marshal Mark Binkin, Chief of the Defence Forces (R), on board HMAS Adelaide at the Garden Island Naval Base in Sydney on July 19, 2016. 

Biden is visiting Australia on a four day trip which includes visits to Melbourne and Sydney. / AFP / POOL / Jessica Hromas        (Photo credit should read JESSICA HROMAS/AFP via Getty Images)