The three countries came to the agreement during a meeting of senior defense ministers at the two-day long 11th Asia Security Summit Shangri-La Dialogue in Singapore, Yonhap News Agency reported.
South Korea's Defense Minister Kim Kwan-jin, U.S. Secretary of Defense Leon Panetta and Japanese Senior Vice Defense Minister Shu Watanabe took part in the talks.
"The three officials concurred that North Korea's provocations pose a threat to all countries and there is a need to further enhance ties to jointly cope with the challenges," an official from South Korea's Defense Ministry said Saturday.
The official said the three nations view provocations on North Korea's part, such as the shelling of South Korean island in 2010, as threats to peace and stability in Northeast Asia.
"The three country's stressed that despite provocative actions taken by the North, it will receive no compensation and only find itself becoming more isolated from the international community," the official said, adding that the three nations called on Pyongyang to respect United Nations resolutions and give up its nuclear weapons programs.