That's an "F". As with so much, your wishful thinking is in conflict with reality.
"On the evening of August 7, 2008, Georgia launched a ground- and air-based military attack on South Ossetia's capital, Tskhinvali. Russia responded by sending troops into South Ossetia and launching bombing raids farther into Georgia."
Note who attacked first. Note where they attacked. What was the Russian response? In this case is the "response" also "pre-emptive"?
Think about it, Lee. You wanted to believe Russia was the pre-emptive aggressor so that became your reality. How much of what you believe about the world is simply because you want it to be true and has no foundation in reality or logic?
Hint: A lot. Really.
Arf