Embarking on the road of revolution in his teens with high ambition to liberate Korea usurped by the Japanese imperialists, the President clarified the truth that the independence of the country should be achieved only with arms.

At the historic Kalun Meeting in 1930, he founded the Juche idea, the guideline of the Korean revolution, and set forth the line of anti-Japanese armed struggle based on it. And he formed the Korean Revolutionary Army (KRA), a political and paramilitary organization of Korean communists, for the preparation of armed struggle.

Under his guidance, the KRA members pushed ahead with the works to train the backbone of armed struggle and secure arms and accumulate military experiences while laying a mass foundation for the armed struggle.

The line of armed struggle was developed in depth through the Mingyuegou Meeting in December 1931, at which an anti-Japanese revolutionary war was declared to annihilate the Japanese imperialist aggressors under the slogan "Oppose arms with arms, and oppose counterrevolutionary violence with revolutionary violence!".

After this meeting, the President stepped up the building of stationary revolutionary armed forces as the first work to launch the armed struggle.

Thanks to his energetic guidance, the reliable backbone of armed ranks was built up, guerrilla groups were organized on a wide scale and the decisive struggle was waged to wrest weapons from the enemy.

On the basis of such detailed preparations, the President founded the KPRA (the then Anti-Japanese People's Guerrilla Army).

Thus, the Korean people could victoriously stage the struggle for national liberation on a new high stage with the genuine revolutionary army guided by an outstanding leader for the first time in their history.