The Shenandoah invaded the region in the lower reaches of the River Taedong in March 1868 according to the scenario for aggression of the then U.S. government and went on the rampage, firing guns, killing people and plundering. The enemies aboard the warship forced Korea to sign an unequal and shackling treaty.

In the same year, the U.S. aggressors exhumed Prince Nam Yon's Tomb and mapped out a plan to use his remains as bait for securing a shackling treaty from Korea. They sent gangsters' group aboard warship China to commit the barbarous acts.

The Korean people held off the U.S. imperialists' aggression warships and demonstrated the nation's spirit and stamina.

The ships' intrusion into Korea was the product of the U.S. criminal moves that envisaged swallowing up Korea and turning it into an outpost for invading Asia, the speakers said, adding:

The U.S. imperialists' moves to invade Korea became more pronounced in the middle of the 20th century.

An example is the U.S. imperialists' military occupation of south Korea after the defeat of the Japanese imperialists and the moves to provoke a war against the DPRK.

The speakers said the U.S. imperialist aggressors should draw a serious lesson from their defeat in the Korean War, and not rush headlong.

Present at the seminar were officials, teachers, researchers, lecturers, reporters and editors in the fields of social science, education, preservation of national heritages and mass media.