Transmedan War

Transmedan War
Clockwise from top left: Waldish artillery during the Siege of Alderham The Fallish cruiser TBA sinks during the Battle of X Hyacinthean soldiers advance during the Battle of X Free States warships in X A Waldish machine gun nest in northeastern Jarnland Nadauran soldiers during the Battle of X
Date 17 April 1934 – 20 October 1940 (6 years, 6 months and 3 days) Location Abaria, Calesia, Elia Australis, Elia Borealis, Hylasia Result Transmedan Powers victory
Belligerents
Transmedan Powers: Waldrich Free States Hyacinthe Rosland-Iskrell	Sydenham Powers: Asplinist Falland Nadauro Ruthen Razan
Commanders and leaders
Main Transmedan leaders: TBA	Main Sydenham leaders: Edwin Bampfylde Agustín I Lúcio Cabral TBA
Casualties and losses
	Military dead: Over 2,500,000 Civilian dead: Over 1,000,000 Total dead: Over 3,500,000

The Transmedan War, also known as the Six Years' War, was a global conflict fought between the Transmedan and Sydenham Powers from 17 April 1934 until 20 October 1940. The conflict saw fighting on every continent and directly involved a majority of the world's nations, including all great powers. The war was the first to see the widespread employment of mechanized and aerial warfare by its combatants, and was the last major conflict to take place between great powers before the dawn of the atomic age. More than 50–63 million people were killed during the war, making it one of the deadliest military conflicts in history. The war ended with the defeat and surrender of most of the Sydenham Powers, and the establishment of a new international order known as the Teleon led by the Transmedan Powers.

Following the Crash of 1925, the Sydenham Powers led by Asplinist Falland and Ruthen emerged to challenge the traditional Calesian great powers of Waldrich and Hyacinthe, whose strength had declined in the preceding decades and fell into considerable social turmoil with the 1920s depression. They cultivated ties with powers in other continents such as Nadauro and Razan, which challenged the future Transmedan states such as the Free States in their own spheres.

The conflict began in 1934 with a Hyacinthe-supported revolt of ethnic minorities in southern Falland, fought as a long and indecisive proxy war over which the Transmedan alliance gradually formed seeking to use the crisis to snub the ambitions of the Sydenham Powers. In 1935, the conflict escalated into full, open war between Falland and Hyacinthe, followed by a Sydenham attack on Waldrich with the invasion of Cuthland. The Sydenham Powers conquered several more Calesian countries to cut off support of Hyacinthe, but by 1936 the Hyacinthean front turned into a gruelling stalemate, and an attack on Waldrich itself was repulsed. Concurrently, war started in Abaria as Razan invaded Shiraq in the name of pre-empting Hyacinthean communist takeovers in the region. In the same year, hostilities began in Elia Australis when Nadauro, supported by Falland and Razan and already involved in the Third Equato–Nadauran War, invaded Terrafirma in an effort to cut off the Transmedan alliance from Elian resources, but this also triggered the Free States' entry to the war as a Transmedan power.

Fighting in 1938, though indecisive, saw circumstances shift to advantage of the Transmedan Powers. By the end of 1938, the Transmedan powers gained naval supremacy in the Medan Ocean, while the Hyacinthean redoubt in Calesia was secured through the successful defense of supply lines through Cassany. In late 1939 and early 1940, the conditional surrender of Nadauro in Elia Australis was followed by major successes in southern Abaria which pressured a Razanite withdrawal, as a new government in Razan agreed to peace with the Transmedan alliance in exchange for ending its support of the Calesian Sydenham bloc. Rallying all efforts to Calesia, the Transmedian forces launched a massive offensive in early 1940, but against a determined Sydenham defense its results came unexpectedly underwhelming. The exhausted Sydenham countries were to be toppled by domestic revolutions instead, establishing new governments that began negotiations and agreed to a peace by late 1940, bringing an end to the war.

The Transmedan War was a political, economic, cultural, and social turning point for the world. A tide of socialist revolutions swept the Calesian continent after years of exhausting warfare, while the Calesian colonial empires were dismantled by national liberation movements and new domestic governments that pursued decolonization. The consensus of powers after the war was generally sympathetic towards a humanist, Delarueist reconstruction of the world order, which produced the Teleon system and the United Congress. The Postbellum, a period shaped by these institutions and the underlying consensus among the major powers of the world, endured into the 1960s.