South Korea at war (OFFICIALLY)?

Some strage events have been happening near the border with North Korea.
1. South Korean navy submarine has been destroyed by unknown factor. Witnesses claim to have heard two explosions in wave style. The vessel was split in half and sank to the bottom of the sea. Only a couple from crew survived, but they are currently isolated by the government.
2. A soldier posted at the border was shot dead. The government controlled media, and announced that he committed suicide, but what kind of suicide wound five different places including hand, legs, and chest?
3. A helicopter in scout mission has disappeared without trace also near the border of North Korea.

What the hell is happening? Could this be the reassuming of war?
I hope not, because my draft will up soon!!!!