In the 1930s the Japanese imperialists intensified the fascist crackdown upon the Korean people. Korea turned into a large prison due to the brutal atrocities of the Japanese imperialists, who had cooked up various evil laws and arrested, imprisoned and killed its people at random.

In those days, Kim Il Sung decided to attack the enemy’s stronghold in order to instill the confidence in national liberation into the minds of the Korean people and arouse them to the anti-Japanese resistance.

He crossed the Amnok River and advanced into the homeland with the main unit of the Korean People's Revolutionary Army (KPRA) to attack Pochonbo, one of the border guard bases of the Japanese imperialists.

At night of June 4, Juche 26 (1937), the KPRA members attacked and wiped out the enemy ruling organs including the police sub-station in a moment according to the signal gun report raised by the President, and victoriously concluded the battle.

The battles of Kouyushuishan and Jiansanfeng in the wake of this battle demonstrated once again the militant might and invincibility of the KPRA and threw the enemy into horror.

The battle of Pochonbo was of significance as it instilled into the Korean people groaning under the Japanese imperialists' colonial rule the conviction that Koreans are not dead but alive and that they can win victory if they fought with Japanese imperialism.