The Female Furies are secondary antagonists in the DC Universe. They are an all female military unit lead by Granny Goodness which serves as both an elite strike force and honor guard for Darkseid, Lord of Apokolips.
Raised in Granny Goodness' orphanage, the Furies were taught military tactics under Goodness and assassination under Kanto.
Goodness instilled fanatical loyalty in the Furies, teaching them to be loyal to her first, but for their foremost loyalty to be for Darkseid, making them willing to "Die for Darkseid".
In spite of their loyalty to Darkseid, infighting and bickering among the Furies is commonplace, most typically to grab a leadership role of the group.