The anti-Japanese war was unprecedentedly arduous and complicated, but the President put forward it as a fundamental principle to achieve the independence of the country by relying on the efforts of the Korean people, not by anyone's help.

In those days, the movement for national liberation in various colonial countries had been conducted in the forms of petition, demonstration, uprising and riot. And the national liberation cause of the peoples of colonial and dependent countries had been recognized to be accomplished only by the support of the working class of the suzerain states.

But, all those forms of struggle could not deal a decisive blow at the imperialists armed to the teeth and no one bring independence to the peoples of colonies.

It was a lesson taught by the history of the national liberation struggle in many colonies which suffered bitter failure and setbacks that the imperialist aggressor forces cannot be repulsed and the cause of national liberation be achieved through peaceful and nonviolent struggle and by relying on others.

At the Kalun Meeting in Juche 19 (1930), the President solemnly clarified that the Korean people are the masters of the Korean revolution and it is most important to have a firm stand and attitude that the Korean revolution should be carried out by the Korean people themselves and in conformity with the actual conditions of the country.

At the Mingyuegou meeting in December 1931, he stressed the need to mobilize all the patriotic forces against the Japanese imperialists to the armed struggle, irrespective of wealth or poverty, partisanship and religion, whether nobles or commoners.

Since then, the anti-Japanese revolutionary war was formally declared under the slogan "Oppose arms with arms, and oppose counterrevolutionary violence with revolutionary violence!"

The decades-long colonial rule of the Japanese imperialists ended and the historic cause of national liberation was accomplished in Korea, thanks to the independent revolutionary line and the plan for national liberation maintained by the President in the whole period of the anti-Japanese revolutionary war.

The anti-Japanese revolutionary war waged by the Korean people was recorded in the history as the first national liberation war in which the oppressed popular masses of colonial countries defeated the imperialist aggressor forces with their own efforts with arms in their hands.