Truman decided to show the USSR and the world we'd be the next global power, and the US has occupied Europe and Japan since. The anniversary of the bombings just passed, but we don't think about them because we disregard or justify every wrongdoing.

And this is where we're at today:

"In the past weeks, we've seen a lot of countries trying to mask irresponsible behaviours behind frankly insane statements such as the US’ claims that theirs are "responsible” nuclear threats." ICAN