While Japan's once-charged anti-nuclear movement struggles to retain its momentum five years after the 2011 Fukushima catastrophe, former Prime Minister Junichiro Koizumi remains doggedly determined to attain his goal of ending the country's reliance on atomic energy.

On Wednesday, he renewed his pledge to help ill U.S. veterans whose conditions they claim are linked to the release of radioactive plumes from the Fukushima No. 1 nuclear plant.

Koizumi, who is opposed to Prime Minister Shinzo Abe's pro-nuclear stance, said it was an "outright lie" when Abe said during Tokyo's final presentation for the bid to host the 2020 Olympics that the contaminated water situation at the Fukushima No. 1 power plant is under control.