Undertaken at the onset of 8 ABY, the Caspian Annexation Campaign was part of Emperor Bacharan Valak's movement to overwhelm any forces opposing the Galactic Empire. Caspia was chosen for its strategic location, regional military prowess, and ambivalence to any other alliances. The Empire invaded under the auspices of an escorted diplomatic port-of-call, and quickly overran the unprepared Union forces. However, the Imperial forces were unable to declare complete victory, due to intense localized resistance, and began an occupation that would last through three months of grueling attrition. Abetted by some of the worst weather in its recorded history, the commonwealth seat world of Caspar managed to force a draw and broker a ceasefire.