Which of the following political issues in east asia has raised the most security concerns?

The testing of nuclear weapons by North Korea hope i helped :)

Although this may be the opposite of what you think i will say it anyway. you were brought into this world for a reason and you still have soo much ahead of you. not everybody has an opportunity of living a great life, but it doesn’t give you a reason to end everything. somebody in the world loves you, and imagine what you would do to them if you left forever.

Answeroil-shale;