In March 18, 1943, the New Fourth Army third division of seventh brigades and nineteenth regiments fourth even 82 warriors, a blocking action in Jiangsu Huaiyin Liu Lao Zhuang, in order to cover the main forces and government security shift, as the forces of wealth vulnerable side, tenacious fight against more than one thousand Japanese soldiers attack 10 times, 82 officers and men although all heroic sacrifice, but tomorrow army dead, the great victories over 170 hurt more than 200. There is no mountain hills, no forest swamp, no tall buildings shelter, asymmetric forces weapon equipment implementation of the enemy's fighting, in the unlikely scenario, obtained a super game, played a transfinite war. Four blocks contain the Japanese for more than 10 hours, successfully covered the safe transfer of Liu Lao Zhuang people, and for the New Fourth Army leading organs, the main force and the local anti-Japanese democratic political power strategic maneuver, to win time.