Benefis Health System, the largest private employer in Great Falls, and Sanford Health, the largest private employer in North Dakota and South Dakota, announced a strategic alliance to collaborate on clinical initiatives, physician recruitment and services, information technology, quality programs, research potentials and health care cost reduction. Both organizations will remain independent, and the alliance will not change the governance, ownership or financial structure of either organization, according to a news release from Benefis. The alliance will have no impact on total employment at Benefis, which has more than 2,800 personnel, said Karen Ogden, chief communications officer at Benefis.