He had employed different tactics in battles on the basis of proper calculation of the balance of forces and geographical and weather conditions, always winning victories.

It could be well proved by the book "The Protean Anti-Japanese Guerillas" authored by a Japanese.

He appropriately combined large-unit military operations with small-unit military activities.

Among those tactics created by him were simultaneous attacks, lure-and-attack, rush-march tactics, etc.

Thanks to the unique tactics of Kim Il Sung, the Korean People's Revolutionary Army could win victories in battles against the Japanese imperialists.