Quick answer

In Marvel’s 2025–2026 continuity, the “One World Under Doom” crossover is the event that directly leads into the “Armageddon” storyline. The Armageddon event then begins with Avengers: Armageddon #1 (launching in 2026), preceded by the bridge one‑shot “The Will of Doom” and the miniseries Wolverine: Weapons of Armageddon #1–4.

So if you’re asking “which issue starts Armageddon?” in this timeline, the answer is: Avengers: Armageddon #1 , but it’s meant to be read after finishing One World Under Doom #1–9 and The Will of Doom #1.

What “One World Under Doom” actually is

One World Under Doom is a 2025 Marvel crossover event centered on Doctor Doom becoming Sorcerer Supreme and then Emperor of Earth , imposing a harsh but “orderly” new world order.

Key points:

  • Announced at San Diego Comic-Con 2024 , originally slated for late 2024, then moved to February 2025.
  • Core series: One World Under Doom #1–9.
  • Main idea: Doom uses magic and political control to end crime, poverty, and borders, but at the cost of freedom and the enslavement of Latverians to fuel his utopia.

By the end of issue #9 , Doom is effectively “gone” (dying/disintegrating after resurrecting Valeria), the world reverts to something like the old status quo, and Wanda Maximoff (Scarlet Witch) is revealed as the new Sorcerer Supreme.

How “Armageddon” starts after Doom

Marvel then sets up the next big event, Armageddon , as the follow‑up to One World Under Doom:

  • Bridge issue:
    • The Will of Doom #1 – a one‑shot that connects the end of One World Under Doom to the start of Armageddon.
  • Prelude miniseries:
    • Wolverine: Weapons of Armageddon #1–4 – launches in February 2026 , directly building toward the main event.
  • Main event:
    • Avengers: Armageddon #1 – kicks off the core Armageddon storyline in June 2026.

Reading order around the transition looks like this:

  1. One World Under Doom #1–9 (2025)
  2. The Will of Doom #1 (one‑shot epilogue/bridge)
  3. Wolverine: Weapons of Armageddon #1–4 (early 2026)
  4. Avengers: Armageddon #1+ (mid‑2026 onward)

That’s the “path to Armageddon” Marvel has been pushing in guides and articles.

Why forums and fans link Doom + Armageddon so tightly

On Reddit and comic news sites, you’ll see people explicitly tying these together:

  • One Reddit thread notes that during the Blood Hunt / Death of Doctor Strange era, One World Under Doom #1–9 runs alongside Captain America #1–11 and Wolverine: Weapons of Armageddon #1–4 , all “leading up to the impending Armageddon.”
  • Articles describe Armageddon as directly succeeding One World Under Doom, even calling it the next major Marvel event after Doom’s world‑order saga.

So when you see the phrase “which one world under doom issue start armageddon,” fans are basically asking: “At what point in the One World Under Doom / Doom aftermath does the Armageddon event actually begin?” The clean answer in-universe and in publishing order is:

  • One World Under Doom sets the stage.
  • The Will of Doom #1 + Wolverine: Weapons of Armageddon #1–4 are the immediate pre‑Armageddon buildup.
  • Avengers: Armageddon #1 is where the Armageddon event proper starts.

If you want a simple reading path

If your goal is just to reach the start of Armageddon without getting lost:

  1. Read One World Under Doom #1–9.
  2. Read The Will of Doom #1.
  3. Read Wolverine: Weapons of Armageddon #1–4.
  4. Start Avengers: Armageddon #1.

That sequence will give you the full “Doom world under doom → aftermath → Armageddon” flow Marvel is using in 2025–2026.

TL;DR:
The event that “starts Armageddon” after Doom’s rule is Avengers: Armageddon #1 , but it’s intended to follow One World Under Doom #1–9 , The Will of Doom #1 , and Wolverine: Weapons of Armageddon #1–4.

Information gathered from public forums or data available on the internet and portrayed here.