The nave of 2 koreas exchanged fire on the west sea today.
This irresponsible provocation of North Korea resulted the South korean navy to send warning communication and warning shots.

The north then fired direct shots against the south which the south responded with its own direct shots. The North Korean patrol ship was partially destroyed and was force dto turn back. The south sustained no damage.

Why did the North korean patrol ship tried to force its way southward?
Only 15 days were left till the negotiation of the US and South.
Is North Korea disconted with aid from the international society?
Is North Korea trying to gain the attention of the US by doing rash things?
North Korea often disobeyed and violated the international sanctions and agreements. Now they are getting what they deserve.

If North Korea does not change its own attitude, the international society won't change its view of North Korea either.