Lando Calrissian set up Tendrando Arms during the YV crisis. They're first droid, the Yuzhaan Vong Hunter, was prototyped during an assasination attempt on President Fey'la. The Attempt was foiled and the droid went on mass production in time for the assault by General Antilles on Borleais. The second incarnation of this was the YVI, a MSE droid equipped with the YVH sensors. These MSE droids allowed the Alliance to begin a sensor sweep of the alliance rooting out thousands of YV spies and sympethisers. The YVH droids were reprogrammed in the post YV era to be battle droids and defenders. The Solo's and Skywalkers both have Tendrando Arms Battle Droids on their ships as an extra defense. Jade Shadow's droid NANA was reprogrammed as a Nana for their young child Ben. Han's droid is equipped with all the technology and Armor which made these droids so popular with the Defense forces during the conflict.