On this day, 121 years ago, May 3, 1904 (March 18, 1904, the Japanese army occupied Dalian. Japanese military heavy howitzers bombarded Russian warships in Lushun Port. On May 3, the Japanese Navy conducted another third lockdown. Lieutenant Colonel Lin Sanzixiong was the commander-in-chief, and 12 ships sailed for Lushun Exit in the early morning. Due to the fog, the Russian coastal artillery forces relaxed their vigilance, and the Japanese blocked ship reached the port channel and exploded and sank. The channel was blocked successfully. Since then, although Russia's ironclad ships, cruisers and other large warships could not enter and exit smoothly, they had not yet achieved their intended role and effect. Some blocked ships were quickly cleared by the Russian army. On the 12th, Japan's "Yoshino" and other three ships hit the mine and sank in Lushun. After the Japanese Army concentrated its superior forces to cross the Yalu River on April 30, it occupied Jiulian City on May 1. On May 6, the Japanese army occupied Phoenix. There are 10 Russian troops in southern Manchuria. 20,000 people, but Kurobatkin, Commander-in-Chief of the Manchurian Army, took passive retreat. On the 10th, Japan and Russia fought in Wafangdian, Jinzhou for several days. On May 5, the Second Army of the Japanese Army under the command of the Austrian Defense Force landed at Houershi, Jin County, Liaodong Peninsula, and occupied the periphery of Jinzhou almost without encountering Russian resistance. Jinzhou is located in the narrow area of the Liaodong Peninsula and is the throat of the land route to Lushun Dalian. Its military status is very important. On the 18th, the Russian First Corps came east from Europe. On the 19th, the Japanese 10th Division landed at Dagu Mountain. On the 26th, three Japanese divisions, with the cooperation of more than 200 artillery pieces, surrounded the two wings of the Russian army and stormed the Jinzhou Nanshan position with heavy artillery. At the same time, the Japanese gunboats fired from the side of Jinzhou Bay to cover the infantry advance. On the 27th, the Japanese army occupied Jinzhou and cut off the connection between the Russian troops in Lushun and Liaoyang. After the Japanese occupied Jinzhou, the base camp decided that the third, fourth and fifth divisions of the Second Army and one brigade of cavalry and artillery each would fight north from Jinzhou. The Third Army was also organized into the Third Army, commanded by Naimu Xidian. Its tasks were: "Quickly attack the Lushun Fortress and not let the enemy on land endanger the rear of the Second Army at any time." After the fall of Jinzhou, the Russian army hurriedly evacuated Dalian Port on May 31, but the port was not destroyed in time, allowing the Japanese army to use Dalian Port to transport troops and supplies as a base for attacking Lushun and Liaoyang. Naimu Xidian then occupied Dalian and Qingniwa.