2. North Korea

North Korea remains a case study in hardline international sanctions, primarily over its persistent nuclear weapons and ballistic missile programs. Since 2006, the UN, U.S., and EU have targeted everything from arms trade to crucial economic sectors. Unlike Iran, North Korea’s economy is largely insulated and reliant on limited trade partners like China, intensifying the nation’s isolation but failing to curtail its nuclear ambitions. The country’s ongoing hardship illustrates the challenges of isolating highly secretive regimes.