Kim Jong Un, the leader of North Korea, defied the UN by firing two “medium” missiles into the Sea of Japan. Rumors have circulated that they were meant to attack Japan/ South Korea (allies of the US, though relations between the two aren’t friendly.) Either way, the North Korean government could be trying to provoke the US. Since then, more sanctions have been put in place and strengthened by the US. It’s estimated that North Korea has 10 to 16 nuclear warheads, and currently working on an intercontinental ballistic to deliver them.
UPDATE: Five more missiles were launched into the Sea of Japan. They were short range and North Korea plans on putting more nuclear tests into action. China, North Korea’s only large supporter, is advising them to stop.
The UN is very upset and has demanded that North Korea completely and irreversibly dismantle their nuclear missile testing program. Apparently they have been testing missiles for a while until they were found by the US- sanction representatives to have a large amount of uranium in their possession.