With post #52, Sauron’s Blog began the story of Beren & Lúthien (told from Sauron’s point of view). Now, the epic tale continues, as Sauron chases Beren south into Doriath, where the Man will first encounter Arwen’s great-great-grandmother:
Arwen, Beren and Lúthien, Humor, Sauron, Sauron's Blog
So why is Melkor sending an entire army, headed by his Chief Lieutenant, Sauron Gorthaur, Lord of Werewolves, Master of Tol-in-Gaurhoth, Duke of Angband, Designer of Eä, High Commander of the Forces of Fire and Ice and Darkness and Death, into Dorthonion? To destroy the Noldor? To invade Doriath? To do anything useful at all?
No. He’s sending an entire army into Dorthonion to kill one guy.