From what looks to be a rather complicated translation of the motto - below:
http://latindiscussion.com/forum/lat...-ruinae.23558/
The words 'Fearless', 'Strike', and 'Ruin' appear to be represented.
See also:
https://www.proz.com/kudoz/latin-to-...m-ferient.html
Not sure if this helps - context appears important as to whether it is potentially military or something else.
Mike