My original post was not intended to suggest that the MOD would go green, but that petrol/diesel engines might become rare, for example Volvo going pure electric.
A similar problem arose in the 80s. At the time the sole supplier of the grade of avgas used by the Shackleton was Venezuela. If global petrol and diesel supplies became limited, then what?
I guess Saudi better invest in solar panels and technology to export wiggly amps
