nMay 31
nThe Interim Committee agrees that “the most desirable target would be a vital war plant employing a large number of workers and closely surrounded by workers’ houses.”  Among those agreeing is James Conant, the president of Harvard University.
nMay 31
nThe Office of Strategic Services (OSS) reports on receiving a Japanese peace feeler through a Japanese diplomat stationed in Portugal.  The Japanese diplomat says that the actual terms are unimportant so long as the term “unconditional surrender” is not used.
nJune 1
nInterim Committee makes formal decision decides not to warn the civilian populations of the targeted cities.