The invincibility of the DPRK unfolding an era of prosperity under the leadership of the dear respected Kim Jong Un is based on the steadfast will of the servicepersons and civilians to glorify the dignity and honor of the country shining with the august names of Kim Il Sung and Kim Jong Il, united closely around the Party and the leader.

The Korean people have made enormous achievements in socialist construction by dint of mental strength.

After the Fatherland Liberation War (1950-1953), they finished the nation's industrialization, which would have taken hundreds of years, in only 14 years, paving a way for becoming a socialist power.

They ushered in a golden era of the Workers' Party through the speed campaign in the 1970s and 1980s and overcame all trials in the 1990s also by dint of mental strength.

With this strength, they could win a victory in confrontation with U.S.-led imperialists and succeed in producing steel, fertilizers and vinalon fiber with locally available raw materials and fuel.

The Korean people, including servicepersons, have launched this year's onward march with determination to build a thriving nation with their invincible mental strength.