Who have been North Korea's military partners around the world?

North Korea, accused of sending troops to Russia amid Ukraine war, has had military partnerships with multiple countries. North Korea sent over 1,000 soldiers to North Vietnam between 1966-1972 while it sent about 1,500 military advisers and 40 air force personnel to Egypt during Yom Kippur War in 1973. North Korea had fostered military exchanges with Libya under Muammar Gaddafi.