Population Migration / Travel
On the day of the Burning Omen of Silir, the Orcs, who call themselves Uruk-Hai, foreseeing the omens, with their particular spiritual leaders, led their people to Stoirmhæfen, and acquired the entire navy, some rightfully, others violently. They then sailed away, never to be seen again. The Orc population has never reached the might it had before then.