What caused the japanese to surrender?
the allies captured iwo jima.
the allies invaded japan.
general macarthur captured the philippines.
the u. s. dropped atomic bombs on hiroshima and nagasaki.

To surrender during WW2? I assume so (based on the answer choices).

The answer would be the U.S dropped atomic bombs (The fat man and little boy, as they were called) on Hiroshima and Nagasaki. :) Hope I helped.