The YVH S-series war droid represented the space assault variant within the YVH-Series battle droid line, manufactured by Tendrando Arms. Among the S-series war droids deployed on the Mission to Myrkr were YVH 2-1S and YVH 2-4S, and by the year 45 ABY, Tendrando Arms had engineered the YVH-8 S-series battle droid.