Question

what was one reason why some americans disagreed with trumans decision to use the atomic bombs on japan? they believed the bombs would lead to an immediate invasion of the united states by japanese forces. they were concerned that using the bombs would prevent the u.s. from being allowed to join the united nations. they argued that the bombs killed tens of thousands of innocent japanese civilians and destroyed their cities. they saw the atomic bombs as an unnecessary expense during a time of economic prosperity.

Explanation:

The atomic bombings of Hiroshima and Nagasaki caused massive civilian casualties and destruction. Many Americans were morally opposed to this. There was no threat of immediate Japanese invasion of the US after the bombings, the US joining the UN was not related to the bomb - use, and it was not mainly seen as an unnecessary expense during economic prosperity.

Answer:

They argued that the bombs killed tens of thousands of innocent Japanese civilians and destroyed their cities.