In Hiroshima, the mayor called for a nuclear-free world as Japanese leader Abe and US Ambassador Kennedy looked on. The bomb killed 70,000 people instantly.
Japan is worried that China is building 16 oil rigs in order to exploit oil reserves in the Japanese part of the sea.
Japanese forces are currently bound by a postwar Constitution that prevents them playing a combat role outside Japan. Pacifist groups and numerous legal scholars have challenged the legislation.
A round-up of global commentary for the June 8, 2015, weekly magazine.
In a letter to Prime Minister Shinzo Abe, 187 scholars say Japan's wartime history has become 'distorted by nationalist invective' at a time of growing regional tensions.
At a time when America wants to deepen its relationship with Pacific allies, the historic rancor between Japan and South Korea is worsening – with Seoul accusing Japan of blatant untruths about abuses in World War II.
Secretary Ashton Carter is discussing new military agreements with Japan and South Korea this week on his first trip to the region. North Korea fired missiles into the sea as he arrived.
This week's round-up of global commentary includes what Japan can learn from Germany about dealing with its history, why the European Union should only rely on NATO forces, a measured response to terrorism in London, a stand for asylum seekers in Israel, and how Africa's ungoverned spaces contributed to the spread of Boko Haram.