Thanks for referencing that famine period when two million people, as you say, perished in North Korea. There is a recent study by UNICEF saying that the current sanctions could lead to up to 60,000 North Korean children starving as the result of this maximum pressure campaign.
As regards North Korea's infrastructure or its susceptibility to famines, I would say that because of the division of the Korean peninsula, North Korea has historically been an industrial base, and South Korea has actually been the breadbasket. Obviously, Korea itself is a largely mountainous country; some 80% of the peninsula, I believe, is largely mountainous. They already have limited arable land for food production and have two growing seasons, and were faced by a global economy in which, when they were going through the famine, because of their economic situation, they were unable to access—