What is the final battle in The R-a-p-eof the Lock, and how does Pope present it in a mock-epic style?

This final battle is the culmination of the long sequence of mock-heroic military actions. Pope invokes by name the Roman gods who were most active in warfare. This is because of the time when Pope informs the people that the Baron fights on unafraid because he "sought no more than on his foe to die," the expression means that his goal all along was sexual consummation.