1. Have any dissenters to my succession within the political structure killed, along with their families. Rather than a public display of gruesome power to instill fear, they would simply disappear. Their existence would be wiped from the record - it would be as if they never existed. Have any dissenting persons from my own family exiled for fabricated crimes.
2. Run a propaganda campaign to publicly discredit any of those 'gone missing' from step 1 that were of particular interest to the people, without actually saying what happened to them. Rather than having the people fear me outright, they would fall to discussion amongst themselves as to what really took place. While this would show that I'm taking a strong position of power and punishing those who would seek to 'harm North Korea', it would also not lead people to outright fear of me. The truth would be lost, leaving me free to pursue other avenues.
3. Promote high-ranking military backers of my succession to appropriate positions within the government - advisers, cabinet/parliament members, etc.
4. Meet with Chinese delegates to provide a public display of solidarity with allies. Allow South Korean diplomats and delegates access to the country.
5. Gain the love of the people by discarding the useless philosophy of total self-reliance that Kim Jong-Il and his father embraced. Make a show of nuclear disarmament to reduce sanctions and open up trade. An outflow of raw materials and textiles will provide jobs and help the flagging economy, while ensuring an inflow of Western goods and services through trade and the relaxation of internet firewall rules to keep the people sated and happy. Secretly broker an agreement with the Iranians via the Chinese to funnel money to their continued nuclear development with the promise of receiving nuke tech in return.
6. Use the influx of tariff/tax money and build up public infrastructure. Relax laws that provide the impression of total dictatorship, allowing the people some freedoms while still quietly squelching naysayers against my regime.
7. Broker alliances with other major Asia powers (Japan, Russia, etc). Reinstate formal diplomatic relations with the United States, the United Kingdom, and France. Officially end the war in the Korean peninsula without agreeing to reunification. Open trade with S Korea and work towards a military ally agreement.
8. Wait until the country has achieved importance as a major trade and military partner before announcing nuclear ambitions (using tech which was already created in secret by the Iranians). During this waiting period, relax and produce some heirs, play some vidja games, drink some beer, etc.
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Max Fox (AC), Zygran (WoW, SWTOR)
"We poison our air and water to weed out the weak! We set off fission bombs in our only biosphere! We nailed our God to a stick! Don't fk with the human race!"
DE/Mr Pants 2012