新四军成立之初,4个支队中,有一个支队没有挺进敌后,而是用于正面战场一线防御,它就是留守皖南的第3支队。在1939年的5次繁昌保卫战中,不惧强敌,勇猛机智,越战越勇,赢得了皖南民众的衷心拥护和全力支持,向世人证明了新四军在兵力弱小、武器装备严重不足的情况下,不仅善打游击战,也能打运动战、防御战,是当之无愧的抗日铁军。从闽北到皖南1937年7月,全国抗日战争爆发,在国共合作为基础的抗日民族统一战线正式形成的历 At the beginning of the establishment of the New Fourth Army, one of the four detachments did not advance behind the enemy lines. Instead, it used it as a first-line defense on the front of the battlefield. It was the third detachment left in southern Anhui. In 1939, during the five defending battles of Fanchang, they won their heartfelt support and full support from the southern Anhui people without fear of their mighty enemy, their brave wit, their courage and tact, and proved to the world that the New Fourth Army, with its small military strength and serious shortage of armaments and equipment, , Not only good to play guerrilla warfare, but also to play mobile warfare, defensive war, is well-deserved anti-Japanese army. From northern Fujian to southern Anhui In July 1937, the national anti-Japanese war broke out and the anti-Japanese national united front based on the cooperation between the Kuomintang and the Communist Party formally formed a calendar