The Nether Invasion is currently ongoing. The Nether War concluded four thousand years ago, during the Second Age, and people forgot. When the Travill Nether Portal was activated and Zombie Pigmen stormed through and gained access to obsidian, to once again make their own nether portals, the Nether Invasion began. At this time, House Donao is largely unaffected, and is sending resources to other Kingdoms who are actively fighting the invasion.
Also known as the Second Nether War.