Question

What new weapon made allied leaders worried about the cost of invading the Japanese mainland?

Answer 1

Kamikaze Fighters made Allied leaders worry about the cost of invading the Japanese mainland

Answer 2

Kamikaze Figherts

Step-by-step explanation:

The Kamikaze were Japanese pilots that made deliberate suicidal crashes into enemy targets in WWII.

This made the allied leaders worried because they did not have a safety plan, which made the kamikaze even more dangerous.

The kamikaze planes were filled with bombs and extra gasoline, once they crashed into their targets it created a huge explosion.