Japan's Prime Minister Shinzo Abe (C) answers questions at his official residence in Tokyo on September 15, 2017. North Korea fired a ballistic missile over Japan and into the Pacific on September 15, responding to new UN sanctions with what appeared to be its furthest-ever missile flight amid high tensions over its weapons programmes. / AFP PHOTO / JIJI PRESS / STR / Japan OUT (Photo credit should read STR/AFP via Getty Images)