Maybe they were planning on taking over Mexico.
Maybe they wanted some shrimp?
They could start an attack in many different ways. All they have to do is sabotage a few wells. Plenty to choose from. Then the Price of Oil would go up even higher which would be good for Russia.
It is not like we dont have submarines over near china and the mediteranian.
We could probably run tanks straight over the ice into russia. Russia is really begging for a slap-down. We might even have nukes in Alaska. This is probably Russia's response to us meddling around with Iran. Stupid Democrats might be starting World War III.
This is Russia's way of sending us a message we can understand. It is like a gigantic hint.