Great Eulhae War

The Eulhae War, also known as the Great War, was a global war that lasted from 1935 to 1941, though related conflicts began earlier as part of the World War. It involved the vast majority of the world's nations - including all of the great powers - forming two opposing military alliances: the Allies and the Contingents. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, the strategic bombing of industrial and population centres (during which approximately two to three million people were killed, including the only use of a nuclear weapon in combat), it resulted in an estimated 50 million to 85 million fatalities. These made the Eulhae War the deadliest conflict in human history.

Akitsukuni aimed to destroy Hasumin and reunite the Yashima Archipelago, as well as dominate the region and take Jeongmi's position as the global superpower. Akitsukuni invaded Hasumin in 1934, but the Eulhae War is generally said to have begun in 1935 when Jeongmi declared its support for the Allied Powers, making the war truly global. In late 1934, Akitsukuni invaded Hasumin and attacked some colonial territories of Hasumin-aligned Meisaan. The Contingent Powers were formed and jointly invaded Hasumin. When Hasumin was subdued, the Contingents invaded Meisaan as it appeared to be planning to counter-invade Hasumin. Nearly destroying Meisaan, the Contingents were driven back by the sudden appearance of Jeongmi.

Etc.

Etymology
The Eulhae War started in 1935, with the year being 乙亥 (Eulhae) in the sexagenarian calendar cycle; this gave the name to the war. Actual hostilities started two months before the Eulhae year began, but it was only in the Eulhae year itself that the war truly became a global conflict. Historians at one time did not count the events that led to the actual fighting as part of the Eulhae War, but over time the name has become more symbolic than practical, and now represents the entire conflict from December 1934 to January 1941. 1935-02-04 (CNY 1935)