Dongzhousha in the eastern suburb of Fuyang County is a big sand island on the Fuchun River, covering an area of more than 20 square kilometers. 1After the fall of Hangzhou and Fuyang at the end of 937, they were separated from the Japanese military station by water and became the outpost of Zhejiang's anti-Japanese war. The island is guarded by the first detachment of Zhejiang National Anti-Enemy Self-Defense Corps. If captured by the Japanese, Xiaoshan, Shaoxing, Zhuji and even Jinhua, the wartime political and cultural center, will be threatened.

On March 1939 and 19, more than 4,000 people from the 22nd Division of the Japanese Army stationed in Hangzhou gathered near Lingjiaqiao in Nanchang to contain China troops and shelled Dongzhou all day. 2 1 at dawn, Japanese troops entrenched in Zhoujiapu fired smoke bombs and a large number of tear gas bombs at China Army positions in Dongzhousha. At the same time, 120 more than 20 Japanese troops boarded more than 20 rubber boats, and under the cover of poisonous gas and light and heavy firearms, they forcibly landed in Sha and Zisha Village, the richest man in the east. The officers and men of the first detachment and the fourth brigade guarding this area fought bravely despite difficulties and dangers. However, with the help of poison gas and artillery fire, the Japanese army gradually crossed the border and its strength increased to more than 500 people. Although most of the defenders were poisoned and suffered serious casualties, they still resisted tenaciously. After five hours of resistance, they were ordered to give up their positions and retreat to the south. The Japanese army invaded Lujiapu village. China soldiers and civilians immediately organized a counterattack, and Zhao Wenlong, head of the self-defense regiment, ordered more than a thousand people stationed in Lingqiao and Lishan on the south bank of Fuchun River to cross the tributary of Fuchun River overnight. They marched in the rain and darkness, and in the early morning of 22nd 1, they began to counterattack the enemy of Lujiapu. After two hours of fierce fighting, the Japanese army retreated and a team recaptured Lujiapu. However, the Japanese army gathered more than 800 people and attacked them from both sides with fierce artillery fire. After eight hours of fierce fighting, more than 60 officers and men of the self-defense group were killed, and Lu Jiapu gained and lost.

Self-defense regiment summed up experience from failure, changed tactics in time, and launched three counterattacks late at night on the 22nd, namely, crossing Fuchunjiang River in the north to cut off enemy telephone lines, and the other two branches of Fuchunjiang River in the north detoured to the southeast and southwest of sandbar. Political workers went deep into the countryside, mobilized the masses to support the front and participated in the rescue of the wounded. At the same time, the 192 division on the west side of Fuyang city also launched an attack on the Japanese army in the city to contain it. In the early morning of the 23rd, the army and civilians attacked on all fronts. The Japanese army ignored one thing and dared not fight again. Finally, they fled in panic. In the afternoon 1, the sand in the eastern Zhou Dynasty recovered completely.

The battle of Dongzhou lasted for 55 hours, which was the most intense battle on Fuchun River in the early days of the Anti-Japanese War. As a local force, the self-defense regiment fought tenaciously, defeated the well-equipped Japanese army with inferior weapons, defended Dongzhou sand, shattered the Japanese plot of "sweeping Dongzhou, forcing Fuchun River to advance southward, and sweeping East Zhejiang", and stabilized the confrontation between the enemy and me across the river. The victory of this war inspired the soldiers and civilians in Zhejiang and set off a greater anti-Japanese upsurge in the whole province. Zhou Enlai, Vice Minister of the Political Department of the Military Commission of the National Government, who was inspecting the Anti-Japanese War in Zhejiang, heard the news and went to Tatou, Dayuan Town, where the first detachment was stationed, on March 27th to visit the soldiers of the Anti-Japanese War, and had a cordial conversation with commander Zhao Wenlong and political workers to encourage them to persist in the Anti-Japanese War.