Question

the most likely reason why president truman ordered the atomic bomb dropped on japan was to show us military strength. force japan to surrender to the allies. guarantee a us victory. prevent the soviet invasion of japan.

Explanation:

The primary goal of Truman's decision to drop the atomic bombs on Japan was to end the war quickly by compelling Japan's surrender to the Allies. This was seen as a way to avoid a costly invasion of Japan by Allied forces. Showing military strength was a secondary aspect, and the war was already in a position where a US - Allied victory was likely. While concerns about the Soviets were present, the main aim was to force Japan's surrender.

Answer:

force Japan to surrender to the Allies.