In 1948, both North and South Korea declared their independence, with South Korea forming an anti-communist government. In the North, Kim Il-Sung became premier – with the leadership role passing to the family’s male heir since.
The two nations perhaps entertained the closest ties during the presidency of Donald Trump, who despite taunting the North Korean leader – calling him “little rocket man” and threatening “fire and fury” – was able to secure a series of summits between the neighbouring countries.
In 2019, he became the first US president to step foot inside North Korea, meeting Mr Kim inside the demilitarised zone and posing for a now-famous photo.
Pyongyang’s relationship with Joe Biden’s administration has so far been troubled with tension.