North Korea has turned up efforts in recent weeks to ensure the younger generation remains obedient to leader Kim Jong Un, holding a cross-country loyalty march and a ceremony at which youth presented “Kid” rocket launchers to the military to celebrate the anniversary of the Korean Children’s Union (KCU).

According to Korean Central News Agency (KCNA), a ceremony to pass on the KCU’s symbolic letter vowing to “trust and follow only the respected fatherly Marshal Kim Jong Un” took place Monday at the Mangyongdae Revolutionary School.

The weapons-offering ceremony and a concert featuring children singing praise of the DPRK leader