Rodong Sinmun Sunday says this in a signed article.

Embodied in the idea that the mental power of the popular masses represents the strongest national power is the principle of the ideological theory of Juche that ideology is the key to the successful revolution and construction and it decides everything, and its validity has been clearly proved in the revolutionary practices and the history of the socialist movement of the DPRK, the article notes, and goes on to say:

The DPRK defeated the formidable U.S. and Japanese imperialists in one century, fully demonstrating the stamina of heroic Korea. In the postwar period it built a socialist power, independent in politics, self-supporting in the economy and self-reliant in national defence, in the flames of the Chollima great surge. And it reliably defended socialism despite the severe trials of the "Arduous March", the forced march and made world-startling epochal changes through the new revolutionary great surge last year. These successes were ascribable to the fact that the popular masses were trained to be persons strong in ideology and faith and their mental power was displayed to the full.

The idea that the strong mental power of the popular masses represents the foremost national power is imbuing all the servicepersons and people with the great pride and self-esteem that our country is an invincible socialist power with the strongest national power. It is also serving as the inspiring banner that enables our army and people to push ahead with the advance for great surge, full of conviction in sure victory and optimism.

With this strong mental power of the army and people, the single-minded unity of the DPRK remains so steadfast and its army grows stronger and our country is fully demonstrating its dignity as the fortress of independence and the invincible socialist bulwark making rapid progress toward a thriving nation.

This is well proven by the present stirring reality in which epoch-making events for opening the gate to a thriving nation are taking place one after another across the country and the hot wind of making new leap forward and pushing back the frontiers of latest science is sweeping all over the country, considerably increasing the might of the Juche-oriented industry.