In June 2010, Karzai travelled to Japan for a five-day visit where the two nations discussed a new aid provided by the hosting nation and the untapped mineral resources recently announced. Karzai invited Japanese companies such as Mitsubishi and others to invest in Afghan mining projects. He told Japanese officials that Japan would be given priority in the bid to explore its resources. He stated, "morally, Afghanistan should give access as a priority to those countries that have helped Afghanistan massively in the past few years." While in Japan, Karzai also made his first visit to Hiroshima to pray for the atomic bomb victims. Japan has provided billions of dollars in aid to Afghanistan since the beginning of 2002.