Japan's recently adopted U.N. resolution calling for the total elimination of nuclear weapons better reflects today's security concerns than previous versions, U.S. disarmament ambassador Robert Wood said Thursday.

"A majority of countries felt that that resolution reflected and was a snapshot of where we are today, what the threats are, and frankly, what the international community needs to do," he told reporters at New York's Foreign Press Center.

Wood said the adoption of the Japan-led resolution was a "big success," despite criticism aimed at Tokyo by numerous countries for apparently backpedaling on nuclear disarmament when it came to the language used in the resolution.