Japanese and South Korean defense authorities are considering making Japanese refueling support for South Korean military aircraft a regular arrangement, people familiar with the matter said Thursday.The measure is expected to be discussed when Defense Minister Shinjiro Koizumi visits South Korea possibly later this month for talks with his counterpart, Ahn Gyu-back.The move comes after the Japanese Air Self-Defense Force provided refueling support to the South Korean Air Force’s Black Eagles aerobatic demonstration team in January. The Black Eagles have previously refueled in Taiwan when attending foreign air shows, but the administration of South Korean President Lee Jae Myung asked Japan for the support so as not to upset China.