In 1984 Pepe Moreno created “Bunker 6A.”
In 2013 Hajime Katoki directed “A Farewell to Weapons.”
[The above link is a Japanese voice/Spanish text version of “A Farewell to Weapons.” This being the interweb, with its millions of Japanese speakers and millions more Spanish readers, I’m posting it anyway. Besides, it’s awesome in any language.]
“Bunker 6A” is about an extremely deadly eponymous pillbox. I loved the story and it led me down the Rebel-hole (but that’s another tale).
“A Farewell to Weapons” is about an equally merciless autonomous tank which IDs itself as GONK-18
The two stories are similarly short and end in near identical fashion: