Now that North Korea conducted a nuclear test, they have to face more international sanctions. The UN already enforced UN resolution 2087 when North Korea has launched a missile in December. However, this resolution was not enough to stop North Korea from conducting the nuclear test. Now that the international community has realized this, the international community will consider other means to restrict North Korea's international and diplomatic movements. Moreover, Japan has stated that they will impose a stronger sanction on North Korea. China, too, is in this. North Korea has ignored China's warnings against the nuclear test. Therefore, China will no longer cover for North Korea. Then what's next? I believe the only option left on the table is military confrontation and other stronger sanctions against North Korea.