North Korean leader Kim Jong Un called on the country’s military to learn from “real combat experience” in ongoing wars, according to state media on Wednesday, appearing to hint at the army’s troop deployment to Russia.

The comments came during his second visit to elite military schools in two days, this time touring the Kang Kon Military Academy on Tuesday, Korean Central News Agency (KCNA) reported.

The school is responsible for “training junior commanding personnel” of the Korean People’s Army (KPA), and is the “parent body of military education institutions in the country and the most prestigious commanding officers