Yoshi Takamura, a lawyer and environmentalist, who lives in Hiroshima, is coming to speak in Colchester on 18 June.
His theme is Hiroshima, Nagasaki and Fukushima, and the links between nuclear power and nuclear weapons.
Yoshi's talk will be introduced by Andy Blowers, who will speak on the subject 'Fukushima - it is a moral issue'.
The meeting will be held at the Quakers Meeting House, Church Street, Colchester (near the Mercury Theatre) at 7.30 pm.