Why wasn't this done prior to 2017?
Because we've never had a US President that threatened to wipe out
No Korea. The World believes Trump will launch.
He made his comments addressing 193 Nations at the UN. The meaning
of his remarks were simple..."If y'all ain't gonna do anything, don't ***** when
we do.
It's called asserting American Force, and giving an either/or to the rest of
the world. "You don't want to see Nukes flying all over the sky, you better
put the brakes to this ******* fatass right now."
About as Presidential as you can get.