1942年 5月 1日，华北日伪军在华北派遣军总司令冈村宁次的直接指挥下，集中了 3个师团的主力和 5个混成旅团的大部，以及各地伪军达 5万多人，配属了飞机、坦克、骑兵，开始了空前残酷的“五一”大“扫荡”。敌人采用“铁壁合围”、“梳篦战术”、“分进合击”、“反复清剿” On May 1, 1942, under the direct command of Okamura Ninzat, commander in chief of the North China Army, the Japanese and puppet troops in North China concentrated the main forces of the three divisions and the majority of the five mixed brigades and regiments, and the number of puppet troops up to 5 More than a million people, attached to the aircraft, tanks, cavalry, began an unprecedented brutal “51” big “raids.” The enemy adopted the “iron wall encirclement”, “Comb-Tactics”, “Divide into co-strike”, “Repeated”