A shekara ta 1940 yakin duniya na biyu ya kawo karshen samarwa yayin da aka juya masana'antar don samar da makamai.
Tabbas, wani nau'i mai rikitarwa na jumla shine "A 1940 WW2 ya kawo ƙarshen samarwa kamar yadda aka juya ma'aikata don samar da makamai kuma bayan da aka daina yin amfani da hotsilities babu wasu injuna masu dacewa don haka kamfanin ya rushe. "