The Exterminator War
The big event of the last seven years was the arrival of the Exterminators.
To cut a long and horrific story short, a fleet of robot-controlled super battleships turned up in Quadrants 5, 6 and 7 and proceeded to devastate colony worlds. They were dubbed 'The Exterminators'.
The full death toll may never be known, but human losses approaching half a billion have been suggested.
Not surprisingly, humanity fought back and after several years of warfare the attacks have ceased and it appears the Exterminator assault has been stopped.
Their exact origins and purpose have not yet been determined - and although, at the start of our megagame the Exterminator menace still has not returned - the shadow of a possible 'second wave' looms over all humanity's thinking.