The Korean Children's Union (KCU) is the precursor to the Socialist Patriotic Youth League of North Korea contributing to North Korean youth movement and pioneer movement.

It is for children aged six to fifteen and is a political organisation linked to the Workers' Party of Korea.

Its uniformed branch is known as the Young Pioneer Corps (which also includes cadets from the Red Flag Mangyongdae Revolutionary School), which admits children and pre-teens ages nine to 15.

[2] On such days, kindergarten-grade children are officially admitted and red neckerchiefs and pins handed out.

Third graders from primary schools are usually welcomed into the KCU on investiture ceremonies on these days.