 Complete the following phrase:  In 69 BC Lucullus invaded Armenia. He began a siege of the new Armenian imperial capital of Tigranocerta in the Arzenene district. Tigranes returned from mopping up a Seleucid rebellion in Syria with an experienced army which Lucullus nonetheless annihilated at the Battle of Tigranocerta. This battle was fought on the same pre-Julian calendar date as the Roman disaster at 