On the heels of significant military setbacks in 1944, the Japanese military launched a campaign of kamikaze attacks, in which pilots attempted to crash their planes into American warships. Their aeroplanes were heavily laden with explosives, so a crash meant almost certain death for the pilot. Why, then, did these pilots wear helmets?

One reason is that in at least some instances, kamikaze pilots survived their missions. Another is that planes commonly experienced severe turbulence before reaching their targets, and in these cases Japanese military commanders had clear reasons for wanting their pilots to be adequately protected.

Perhaps even more important, the aviator’s helmet had become emblematic of what it meant to be a pilot. Kamikaze pilots were pilots, and all pilots wear helmets.

But the most compelling explanation for why kamikaze pilots wore helmets is that it was not the express intention that these pilots commit suicide. Their charge was to destroy their targets by any means necessary. But the hope was that the pilots would return safely, even though the expectation was that most would not.