WWII Antique

This is a old item that was carried by gunners in this time.

This is a Gun cleaning kit, back then in WWII if your gun got wet, it was no use, if it got rusty again it was no use, and especially if it got dirt in it, it would NOT work- what a surprise, now-a-days we can fire guns underwater or trek a desert for days with having to clean it barely. Of course this was significant because without their weapons what else could they fight with? Their words?
I rest my case.