I cannot forecast to you the action of Russia. It is a riddle wrapped in a mystery inside an enigma: but perhaps there is a key. That key is Russian national interest.
Winston ChurchillImmense deposits of kimmeridge clay, containing the oil-bearing bands or seams, stretch across England from Dorsetshire to Lincolnshire. [An early political recognition of the native resource. The Geological Survey had identified the inflammable oil shale in reports since at least 1888.]
Winston Churchill