Analysis of information sources in references of the Wikipedia article "Fat Man" in English language version.
It even had a code: JANCFU for "joint army navy combined foul up" which was a cousin of "SNAFU," military vernacular for "situation normal, all f***ed up."
It was the Battle of Kiska that would lead Time magazine to create the acronym, JANFU (joint army-navy foul-up) to complement the earlier SNAFU (situation normal, all fouled-up).