A defense official said Monday that Japan is seeking to increase its sales of military equipment to Southeast Asian nations amid growing tensions with China and North Korea. The move is part of Prime Minister Shinzo Abe’s push to bolster Japan’s military role and its sales of defense equipment, especially in Southeast Asia, where China has expanded its own arms sales. Hideaki Watanabe, head of the Defense Ministry’s Acquisition Technology and Logistics Agency, said Japan will host a meeting Thursday with defense officials from the Association of Southeast Asian Nations to discuss the sharing of equipment and technology. He spoke Monday at an international arms exhibit near Tokyo that was attended by hundreds of defense officials and industry leaders from around the world.