The Second World War was a common pain for mankind. It began on September 1, 1939, and ended on September 2, 1945. The world war, which lasted for six years, caused more than 90 million military and civilian casualties, and more than $5 trillion was wasted. It was the largest world war in human history. We know that the countries that provoked this world war were the fascist axes of Germany, Japan, and the Kingdom of Italy.
On September 18, 1931, the Japanese Kwantung Army blew up the South Manchuria Railway tracks near Shenyang's Wicker Lake and planted stolen goods for the Chinese army, using this as an excuse to shell the North Camp in Shenyang. The next day, the Japanese army invaded Shenyang, and then successively occupied the three northeastern provinces.
However, the full-scale outbreak of the War of Resistance Against Japan was on July 7, 1937, when the Japanese army exercised near Peiping, and pretended that a soldier was missing and asked to enter the city to search, which was naturally rejected by our army. The Japanese army launched an attack on our army one by one, and after the Japanese army provoked the July 7 Incident, it caused great repercussions throughout the country, and all of China rose up to resist the war. With wisdom and courage, we have built an unbreakable Great Wall.
In fact, from the perspective of a world war, Japan has never "officially" declared war on China. Because in the Hague Convention, whenever two countries declare war, the contracting countries will impose sanctions on the belligerents. At that time, Japan was an act of aggression, and domestic resources were very scarce. Therefore, it is necessary to import strategic resources from Europe and the United States and other countries.
Without declaring war, it is more possible to import strategic resources in name only. Of course, this is still superficial, after the July 7 Incident in 1931, it invaded and occupied the three northeastern provinces and created a puppet regime. Therefore, the Japanese side naturally has no need to declare war by recognizing these puppet regimes that it has supported.
To say that it was the first country in World War II to declare war on China is probably hard for many people to believe. The country is called San Marino and is a small country in Europe. The country's land area is 60 square kilometers, and the population is only about 30,000 people, which is not as large as the population of a county in China.
Moreover, the whole country is surrounded by Italy, and if you put it on the map, it is almost invisible without a magnifying glass. And this non-existent country was also the first and only country in World War II to declare war on China.
As for why San Marino declared war on China, it was because in 1944, the Allies received intelligence that a German main force had entered the territory of San Marino, so the Allies organized an air force to bomb the territory of San Marino indiscriminately, which eventually killed 35 people and injured hundreds more.
So the San Marino government was so angry that it declared war on all the Allies that day. Later, San Marino believed that war should be declared against the countries involved in the war all over the world, so he sent a declaration of war to both the fascist and allied countries, and China naturally received a declaration of war from San Marino.
Although San Marino declared war, but where is the strength to really mobilize troops? In September 1944, the British also fought a war with the Germans on the territory of San Marino, germany was defeated, and the British occupied San Marino for two months. After the war, San Marino also demanded 730 million lira of war reparations from the British government, but the British simply ignored this, and finally could not do it, and it had to be said that San Marino was a very courageous country. What do you think about that?