Friday marks 10 years since Kim Jong Un, the third generation of his family to rule North Korea, took power after his father’s sudden heart attack. Initially considered inexperienced, Kim quickly showed his ruthless willingness to consolidate his rule by having his powerful uncle and other potential rivals executed or purged. His torrid run of nuclear and missile tests in recent years caused many to fear a second Korean War. Read: India 4th most powerful country in Asia; China loses ground to US: Report Kim switched gears again and staged landmark nuclear disarmament summits with then-U.S. President Donald Trump, but their diplomacy collapsed because of disputes over U.S.-led sanctions. Now, with the pandemic and sanctions causing deepening problems, Kim has sealed off his country’s borders and tried to fix its struggling economy. As Kim enters his second decade in power, here’s a look at key moments in his rule. HEIR APPARENT Jan. 8, 1984: Kim Jong Un is born, the third and youngest of Kim Jong Il’s sons. September 2010: State media say Kim Jong Un has been made a four-star general in the first public mention of his name. Read: Myanmar democracy in new era as Suu Kyi sidelined by army October 2010: Kim Jong Un makes his public debut at a military parade, standing next to his gaunt-looking father on a balcony. He smiles, claps and waves as goose-stepping soldiers, tanks and missiles move past.