Regarding "Article 21": (Article 21) Treating China as a semi-colony is an act of belittling China's nationalism.
About "September 18th Incident": Railroad of Liutiao Lake on the outskirts of Fengtian was destroyed. Kwantung Army claimed that China immediately occupied the cities along the Manchuria Railway. But it was actually destroyed by the Kwantung Army itself (wicker lake incident).
About the "July 7th Incident": Some people shelled the Japanese troops who were practicing on the Lugou Bridge outside Beijing. The next morning, China was at war with the Kuomintang army (Lugouqiao Incident). The two sides once sought a solution on the spot, but soon the Japanese side sent large-scale reinforcements and the Kuomintang government mobilized. The Sino-Japanese War of 1894-1895 began. In August of the same year, two Japanese soldiers were shot dead in Shanghai, where foreigners' rights and interests were concentrated, and China and Japan entered a full-scale war for this.
As for the "crime of aggression against China", this kind of manpower requisition and conscription was also carried out in the colonies, and many people in Taiwan Province Province and North Korea suffered this kind of sacrifice and pain. In addition, many Koreans and Koreans in the occupied areas were sent to Japanese mines and other places to work in harsh conditions. North Korea and Taiwan Province Province also promoted the imperial movement of assimilating the Japanese, and induced people to change their Japanese surnames. ..... People in Asia who have become battlefields have also suffered great harm and pain. Especially the soldiers and civilians in China suffered heavy losses due to the Japanese attack.