EAST SEA, SOUTH KOREA - JULY 06: In this handout photo released by the South Korean Defense Ministry, a South Korean navy ship fires a missile during a drill aimed to counter North Korea's intercontinental ballistic missile test on July 6, 2017 in East Sea, South Korea. The U.S. Army and South Korean military responded to North Korea's missile launch with a combined ballistic missile exercise on Wednesday, into South Korean waters along the country's eastern coastline. (Photo by South Korean Defense Ministry via Getty Images)