At a time when the invincibility and fortitude of our cause have been further demonstrated all over the world and the all-people struggle for ushering in a new upsurge in socialist construction is gaining momentum thanks to the scientific and strong guidance and practice by the ever-victorious Workers' Party of Korea (WPK), the Political Bureau of the WPK Central Committee convened a plenary meeting to promote the perfect and substantial attainment of the grand goals of national prosperity.