Eighty-four years ago today, on December 10, 1941 (October 22, 1941 lunar calendar), the Chinese army began to enter Burma to fight against Japan. On December 10, 1941, the Chinese Expeditionary Force to Burma, the British military attaché Dunnis, was ordered to make a request to Chiang Kai-shek to send Chinese troops to Burma to set up defenses. Chiang agreed, and the next day issued a mobilization order to the Fifth and Sixth Armies to enter Burma. The Fifth Army was ordered to concentrate on Baoshan, and the Sixth Army was ordered to complete the preparations for entering Burma. The 93rd Division was sent to the car to search and alert the Thai and Lao sides. The 49th Division, Liu Guanlong Regiment, was sent as the advance detachment, that is, Kaiwan Town. On the 10th and 11th, Chiang Kai-shek twice invited the ambassadors and military attachés of the United States, the United Kingdom, the Netherlands, and Australia to discuss the joint combat plan against Japan. Brigadier General Magruder, the head of the US military delegation, telegraphed his opinion to Roosevelt. On the 15th, Magruder suggested to Chiang Kai-shek that in view of the British defeat in the Far East and the imminent danger of Burma, he hoped that the Chinese army would enter Burma as soon as possible to protect the security of Yangon and the Burma Road. Chiang Kai-shek ordered the Fifth and Sixth Armies to prepare for Burma for the second time, and at the same time told Wavell: "If there is a sufficient plan, I am willing to send 80,000 elite troops to Burma. However, Wavell was afraid that the entry of Chinese troops into Burma would cause "the shadow of Asian unity to grow bigger and bigger", so he flatly refused, so that the Fifth and Sixth Armies, which were advancing towards Burma, stopped on standby. On the 16th, Roosevelt asked Chiang Kai-shek to convene a joint military meeting as soon as possible to form a joint military committee. On the 23rd, the East Asian Joint Military Conference chaired by Chiang Kai-shek was held in Chongqing. He Yingqin, Xu Yongchang, Zhu Shiming, Shang Zhen of China, Britt and Magruder of the United States, Wavell and Dunnis of the United Kingdom attended the meeting and reached a five-point agreement: 1. Organize a five-nation joint military committee (also known as the Joint Staff Department), located in Chongqing and chaired by the United States. 2. Establish a Sino-British coalition military headquarters to defend Burma. 3. Transfer three Chinese expeditionary forces into Burma for defense. 4. The United States will provide weapons, ammunition and fuel to the Chinese army and the Air Force Volunteer Team, and implement the plan of "equipping and training 30 Chinese divisions" as soon as possible. 5. Send the US Air Force to assist in the defense of Burma and Yunnan. On the same day, Wavell signed the "Sino-British Agreement on Mutual Defense of the Burma Road" in Chongqing. But he still refused to allow the Chinese army to enter Burma on the pretext that he was not ready for transportation and supplies. After the mediation of the Americans, Wavell finally accepted a Chinese division into Burma. On the 24th, Liu Guanlong Detachment of the 49th Division of the Sixth Army was transported by British vehicles to Jingdong for defense. On the 26th, the main force of the 49th Division entered Burma and went to Kunxin and Lanhe areas for garrison. On the 31st, Roosevelt telegraphed Chiang Kai-shek, proposing to organize the Chinese Theater and command the Allied forces in China, Thailand and Vietnam to fight against Japan. It is planned to promote Chiang as the supreme commander of the Chinese Theater and establish a joint staff for his command.