Even if Russia transfers only the S-400 to North Korea

Our fighter jets won't even be able to get near the Armistice Line.
We must cut ties with Ukraine,
restore relations with Russia,
and completely ignore requests for US troop deployments as if they were nothing but barking dogs.
We must not act like chickens being dragged around by diplomacy to suit domestic defense companies.
Once NATO's own defense industries start running, they will absolutely never buy our products.
Just look at how Canada's submarine bid failed.
For warships, Japan's Mogami-class will be the one chosen.
We must ignore the whining of defense companies and pursue cautious diplomacy.
The US will never take responsibility for us.