To hasten the preparations for the final decisive battle against the Japanese imperialists, he put his heart and soul into mapping out a scientific operation plan for Korea's liberation. And he convened a meeting of military and political cadres of the Korean People's Revolutionary Army (KPRA) in January Juche 32 (1943) to advance the three-point line for national liberation.

The three-point line was an anti-Japanese final operation plan that called for launching a general offensive of the KPRA combined with an all-people uprising and joint operations by small units of the KPRA and armed resistance organizations behind the enemy lines.

The general offensive of the KPRA, the leading force in the anti-Japanese national liberation struggle, was a main factor for victory in the final decisive battle against the Japanese imperialists. And the idea of raising an all-people uprising in response to the KPRA's general offensive and launching joint operations of small units of the KPRA and armed resistance organizations behind enemy lines was a requisite for the anti-Japanese national liberation struggle and a sure guarantee for decisively smashing the enemies.

Then, the President called a meeting of officers of the KPRA and chiefs of the small units, groups and revolutionary organizations in the Tumubong secret camp in February that year and set forth the concrete tasks and ways for carrying out the three-point line for national liberation.

On the basis of such full preparations, he issued an order on launching the general offensive for final victory, and the historic cause of Korea's liberation was realized on August 15, 1945, one week later.