The Ienaran War (Eurasian: Bella Ienarae, Tarajani Dutch: Oost-oorlog) was a global military conflict fought between the forces of Eurasia, the Union of Progressive States and SECURS, lasting from 1975 to 1977. It was one of the most widespread wars in history, touching every continent and resulting in the deaths of millions of combatants.
The initial battleground was the divided Empire of Tokugawa, a non-aligned monarchist state which suffered an armed insurrection by rebels, known as the Ienaran Federation, who sought a democratic government. The leading UPS member, New-Zealand, began funding the rebels via arms and supplies. Eurasia also began funding separately.
When this was leaked, SECURS responded by deploying a carrier group to Tokugawa to protect the royalist government, although this was decried by the Eurasian Government, who argued that SECURS had no right to intervene in a non-member states internal affairs so directly. Eurasia then sent a fleet to Ienara to provide direct assistance to the rebels, as did New-Zealand. New Tarajan, the SECURS state that had sent its fleet into Tokugawan territorial waters, ordered a blockade of Tokugawa to prevent the UPS fleets from arriving. This was unsuccessful, however, as the Eurasian and New-Zealander fleets did enter Tokugawa and deployed troops to directly aid the Ienaran rebels.
At approximately 10:30 in the morning on July 7th, 1975, Tarajani naval forces opened fire on Eurasian and New-Zealander naval forces. Eurasia responded immediately by ordering an even larger fleet to the area and smashing through the Tarajani blockade, losing a carrier group in the process. Eurasia then began a full invasion of Tokugawa. At the same time, the UPS, and Atenosia, the predecessor to modern New Atanea, also joined the war and deployed forces to Tokugawa.
After the war officially began, Zackalantis, a SECURS member, ordered its navy to bombard Eurasian ports, which resulted in a full-scale invasion of Zackalantis by Eurasian forces, coming within miles of the Zach capital. The invasion of Zackalantis quickly bogged down due to Tarajani and Antanaresian intervention, resulting in Eurasia committing almost 5,000,000 to the war in Zackalantis. The war in Tokugawa progressed much faster, with Eurasian forces driving the SECURS forces south into a small enclave and securing most of the nation for the Ienarans by 1976. The war eventually ended after a ceasefire was declared following the Eurasian deployment of nuclear weapons in an effort to break a stalemate outside Ienara City. Negotiations lead to the Treaty of Zumbrota in 1978.
The war left much of Ienara destroyed, with millions displaced, and also left Zackalantis in ruins due to an effective bombing campaign and scorched-earth policy undertaken by Eurasian and SECURS forces, respectively. The war significantly altered the political landscape of Esamir, resulting in large portions of Ienara becoming part of Eurasia (the south corner), Antanares and New Tarajan (the northern part), as well as the establishment of the United Nations of Esamir. In total, some 23 million died in the war, with the largest casualties being Zach.