In September 1977, W. Jaruzelski  visited Mongolia and the DPRK. While in North Korea, Jaruzelski met with President Kim Il Sung and the Minister of National Defense O Jin U.  Although Jaruzelski did make several critical comments about the DPRK in his secret post-trip report, he still spoke in highly favorable terms about the country and generally recommended that Poland strengthen its relations with North Korea. 

Jaruzelsk's report also includes commentary on China's relations with both Mongolia and the DPRK.

O Jin-u provides a brief on the military developments within the peninsula, including the transfer of American defense capabilities to South Korea, tensions provoked by South Korea, and the modernization of South Korean military. O expressed North Korea's interest in broad cooperation with Romania in the field of military industry.

The Hungarian Embassy reports on O Jin-u's growing influence in the Korean Workers' Party.

The Soviet Embassy reports on the deterioration of Chinese-North Korean relations as a result of the Cultural Revolution in China.