This video has been floating around the Internet for a while, and the general consensus is that it was filmed in 1978 at the New York Aikikai dojo. No other details about the highly trained convent are known, besides what is explained in the narration."The sisters of The Holy Family serve what is perhaps the most crime-ridden part of Philadelphia," an unidentified man explains. "Their orphanage is in constant danger of vandalism and burglary. In recent months several of the children have been assaulted and two of the nuns raped. Unwilling to give up after some 80 years of service to the community, the sisters have turned to the Old Testament for a solution: eye for an eye, a tooth for a tooth.Like the oriental monks of the ancient Shaolin monastery, these modern sisters have embraced the martial arts. Their skills are predominantly protective and defensive. But should human life or chastity be at stake, the good sisters are well-prepared for sterner measures."Sterner measures is right. Considering the time period, we are very impressed. Watch it below: