Only THEN will they know we are "serious".
I'm talking true hardball here.
Considering nothing else has worked to-date.
This will get really dangerous not because we are too tough but we will soon show sign of wavering, giving wrong signal to NK's father and son duo, along with Chicom ruling elites, that one more big push will completely crack our resolve for sustained stand-off.
In the end, we will pay for not being steadfast enough.