How would Teyvat handle getting caught in the Lylat Wars

Teyvat would probably survive the Lylat Wars, but only by becoming a far more militarized, desperate place than it is now. The bigger problem is that Lylat Wars-scale space combat would overwhelm most of Teyvat’s current strengths unless its gods, nations, and hidden powers coordinated fast.

How the conflict hits Teyvat

The Lylat Wars are fundamentally a high-speed space war with starfighters, orbital-level firepower, and a galaxy-wide military backdrop. That means Teyvat’s usual mix of elemental warfare, elite vision holders, and regional armies would be outmatched in open space unless they could adapt quickly. In a straight fight, Mondstadt-style knights or Inazuman samurai would not be enough against sustained aerospace pressure.

Teyvat’s likely response

Teyvat’s best defense would be asymmetric warfare.

• Sumeru would analyze enemy tech, maybe reverse-engineer communications, sensors, or targeting systems.
• Fontaine would likely push naval and engineering innovation into anti-ship and anti-air systems.
• Natlan would lean into frontline resistance, mobility, and morale.
• Liyue would bankroll logistics and fortification at scale.
• Snezhnaya would almost certainly move fast to militarize, exploit chaos, and bargain for leverage.
• The Archons would become strategic anchors, especially if the fight threatened the world’s deeper balance.

That said, Teyvat’s hidden systems matter more than its visible armies. If the fight threatened the world itself, powers tied to fate, memory, abyssal forces, or the sky would likely decide the war’s real outcome rather than ordinary soldiers.

Most plausible outcome

The most believable scenario is not “Teyvat wins cleanly,” but “Teyvat survives by refusing fair fights.” It would use terrain, element-based ambushes, shields, illusions, and localized power spikes to make the Lylat conflict expensive and messy for the invaders. If the war dragged on, Teyvat would probably evolve into a wartime world with tighter alliances and far more destructive technology than before.

Forum-style take

“If Star Fox dropped into Teyvat, the first month would be chaos, but by month three the scholars and engineers would be cooking up anti-starship nonsense in basements.”

“The real boss fight wouldn’t be Andross or the Lylat fleet. It’d be whether Teyvat’s factions can stop arguing long enough to unite.”

TL;DR

Teyvat would not handle the Lylat Wars by brute force; it would handle them through adaptation, sabotage, and rare world-level powers. In a fair war, Lylat has the edge, but Teyvat is very good at making wars unfair.