Prime Minister Keizo Obuchi planned to stress the importance of arms control and disarmament in his speech at the United Nations in New York Monday.

Efforts for nuclear nonproliferation, arms control and disarmament are important for international peace, and nuclear tests by India and Pakistan in May posed a great challenge to nuclear nonproliferation, Obuchi planned to say in the speech.

To achieve a nuclear-free world, it is necessary to prevent further proliferation and to secure a strong nuclear nonproliferation system, Obuchi was to say, according to a prepared text of the speech.