“North Korea’s approach to its Musudan (BM-25) intermediate-range ballistic missile program seems to be to keep trying until a launch succeeds. Early on Wednesday, Pyongyang fired two more Musudan missiles, bringing the total number of Musudans tested since April to six. Details on the two launches Wednesday remain scant as of this writing, but South Korean military officials have confirmed to the Associated Press that at least one of the two launches failed.”
Source: North Korea Just Test Launched 2 More Musudan Missiles. Here’s Why That Matters | The Diplomat