1940年秋季,闻名中外的百团大战沉重地打击了日本帝国主义的疯狂气焰.穷凶极恶的日寇匆匆调兵遣将,企图挽回失败的残局,对我抗日根据地进行了残酷的报复性的大扫荡,活川口惨案就发生在这一时期. In the fall of 1940, the Hundred Regiments at home and abroad, which dealt a heavy blow to the insane arrogance of the Japanese imperialists, were hurriedly sent by troop movements and attempted to restore the pieces of the defeat and carried out a cruel revenge raids on my anti-Japanese base areas , Hukaichuankou tragedy occurred in this period.