At the time, the Silver Moon Elf nobles had advocated abandoning the Pattington Plane because they feared that after the Dark Legion of Abyss Hell occupied the Pattington Plane, it would use the Teleportation Portal coordinates to enter the Elf Continent.
Although the Pattington Plane had been controlled by the Seventeenth Silver Pegasus Legion at the time, nearly all of its residents were Half-Elves.
That was why the Silver Moon Elf nobles had decided without hesitation to abandon the Pattington Plane. Other than the Seventeenth Silver Pegasus Legion, none of the other Silver Moon Elf nobles would suffer any losses.
The Seventeenth Silver Pegasus Legion had taken over the Pattington Plane from Lord Alvis, and while it had indeed brought them considerable profits over the past few years.
Because Gray Dwarf Bandits had frequently invaded the Empress Ivini Islands, the Seventeenth Silver Pegasus Legion had had no time to manage the Pattington Plane recently. Several Elven Guard regiment commanders had been dispatched to oversee the silver mines on the plateau, but unfortunately, they had failed to turn a profit for years...
So after the Elven Council of Elders in Buenos made its decision, Earl Swynborne's opposition proved futile, and he agreed to the council's resolution.
Abandon the Pattington Plane and dismantle the Plane Teleportation Portal.
The Silver Moon Elf nobles had actually considered fighting back, but when they thought of the bitter lesson of Durag's Knee, the Gray Dwarves' northern homeland, many of them did not dare take the risk.
According to Earl Swynborne's calculations, the Dark Legion would need at least ten years to completely occupy the Pattington Plane.
If the natives of the Pattington Plane had a strong will to resist and received supplies from the Silver Moon Elves, this Plane War could very well have lasted decades