"The treaty will deepen confrontation between nuclear-weapon states and non-nuclear-weapon states further and therefore does not match our country's stance of placing importance on cooperation between them", said former Foreign Minister Fumio Kishida previously.
"You could find yourself suffering their cruelty".
The United States of America dropped the bomb to end all bombs on the Japanese city, destroying most of it, along with a portion of the people who lived there, helping to bring World War II to an end.
U.S. Secretary of State Rex Tillerson has skipped a dinner in the Philippines for foreign ministers that North Korea's top diplomat attended. Such missiles could be armed with nuclear, biological or chemical warheads, although many experts say North Korea hasn't fully mastered miniaturizing nuclear warheads and might not have the technology to ensure a warhead would survive re-entry into the atmosphere from space or even hit an intended target. He grew up in a community of ethnic Koreans in the city and has a relative who had since moved to North Korea. While there he called for an end to nuclear weapons.
He is critical of the USA, and says only dialogue, not military actions or threats, can resolve tensions. "Nuclear weapons should never be used".
Japanese officials routinely argue that they abhor nuclear weapons, but the nation's defence is firmly set under the U.S. nuclear umbrella.
Guterres urged UN member nations to intensify their efforts in the shared pursuit of a nuclear-weapons-free world.
"For us to truly pursue a world without nuclear weapons, we need participation from both nuclear-weapons and non-nuclear weapons states", Mr. Abe said in his speech at the annual ceremony.
They have reminded the world of the devastating humanitarian consequences of nuclear weapons, he said, expressing United Nations support for a global effort towards a world free of nuclear weapons.
In 2016, then-President Barack Obama visited Hiroshima, becoming the first USA president to ever visit the city.
Since 2008, photographer Eric Lafforgue ventured to North Korea six times.
Kim Jong-un has again threatened Donald Trump and the US. "I think tensions have risen and many people in Hiroshima share a sense of urgency". Many suffer from long lasting effects of radiation.
"The Japanese people and the whole world clearly remember the frightful disaster that hundreds of thousands of people lost their lives owing to the A-bombs the USA dropped over Hiroshima and Nagasaki", the Korean Central News Agency said in an article. "Because that's how I started thinking about peace - by meeting 'hibakusha, ' including my grandmother and hearing their stories".