Yes / no, is the following a verifiable fact?
"The second 'Ndrangheta war raged from 1975 to 1980 for five-years."
Chain of thought and solution for this question is:
The six-year war between the Condello-Imerti-Serraino-Rosmini clans and the De Stefano-Tegano-Libri-Latella clans, during 1985-1991, led to more than 600 deaths.
So, the answer is no.