EAST COAST, SOUTH KOREA - JULY 29: In this handout photo released by the South Korean Defense Ministry, U.S. Army Tactical Missile System (ATACMS) and South Korea's missile system firing Hyunmu-2 firing a missile into the East Sea during a South Korea-U.S. joint missile drill aimed to counter North Korea¡¯s ICBM test on July 29, 2017 in East Coast, South Korea. North Korea launched another test missile, believed to be an Inter Continental Ballistic Missile (ICBM), which travelled 45 minutes before splashing down in the Exclusive Economic Zone (EEZ) of Japan. (Photo by South Korean Defense Ministry via Getty Images)