Battle for the Last Sea

The Battle of the Last Sea was the largest oceanic war to ever occur, involving more than 10 races, and spanning across all three large oceans on Adrioth. It was started between the forces of the Azur Lane and Crimson Axis, but quickly escalated due to a Siren Civil War, tensions between the Cabal and Eliksni, as well as Spacetech's Orochi mechs which further aggravated the war. Races below the sea also joined the war, including the dreaded Abyssals, Crill, and Shardorians, as well as also involving the Prugen and Mermidians.

## Cause of the War

During a hazy morning, the factions of Crimson Axis utilized an ambush of airstrikes on the Azur Lane base without a prior declaration of war, causing immediate panic and damage to the port. The Azur Lane instantly retaliated, but already had their shores full of mass produced siren ships and Crimson Axis forces. The allied Red Legion Cabal began directly landing on and fighting on the ports, clashing with the Eliksni allied with the Azur Lane. The battle also caused the destruction of a Prugen merchant fleet, leading to immediate retaliation, a civil war between the Sirens, and the resurfacing of the Abyssals.

## Length, Progression, & Results

The War lasted for a deadly 28 years. By the time it was halfway through, because the war took place in peaceful oceans, caused the indirect involvment of many races and nations. By the 23rd year of the war, almost all main ports were destroyed, and coastal cities were bombarded by various warring air forces. At that point, estimated war damages were nearly 290 billion, making it one of the most costly wars to take place. The loss of life was also very high, numbering above 500,000 and included innocents and those not involved in the war effort. During the 27th year, the Vex, Fluegels, and Thunderbirds became involved, as well as Humans, Anthros and Werebeasts on land. With the addition of extremely powerful races, war costs skyrocketed to a whopping 780 billion in a single year. At approximately mid-April of the 28th year, the Catatonics intervened using Hexiron tech and put a stop to the war. Even so, the war continued on land and below the water's surface, at least for another eight years. In total, 1.2 million lives were claimed, and close to 800 billion in damages were recorded. The oceans were filled with pollution and sunken ships, and the war that continued on land caused similar terrible damage. Overall, it is the third deadliest war after the two Great Machine wars.

## Aftermath

Mending the effects of the war proved extremely difficult, and over the span of the war for nearly 40 years, most damage was irreversible and many factions and nations dispersed. The Catatonics worked to help rebuild the broken nations and restore peace to the lands, but it proved to be very difficult. By far the most affected were the shipgirls and Sirens, who lost a great deal of their forces. Other allies, such as the House of Salvation, were completely wiped out, while others like the Red Legion barely survived. Leading war effort companies had mostly been destroyed, and many innocent lives were claimed. It took roughly another 40 years before eveything was almost the way it was before, with cities rebuilt, factions, nations, and organizations slowly recovering, and races negotiating peace treaties with each other.