Unum Group provides disability insurance products in the United States and the United Kingdom. It also provides a complementary portfolio of other insurance products, including employer- and employee-paid group benefits, life insurance, and other related services. The company operates its business through five segments: Unum U.S., Unum UK, Colonial Life, Closed Block and Corporate. The Unum U.S. segment includes group long-term and short-term disability insurance, group life and accidental death and dismemberment products, and supplemental and voluntary lines of business, comprised of recently issued disability insurance and voluntary benefits products. The Unum UK segment includes insurance for group long-term disability, group life, and supplemental and voluntary lines of business. The supplemental and voluntary lines of business are comprised of individual disability, critical illness, and voluntary benefits products. The Colonial Life segment includes insurance for accident, sickness, and disability products, life products, and cancer and critical illness products marketed to employees at the workplace through an agency sales force and brokers. The Closed Block segment consists of individual disability, group and individual long-term care, and other insurance products no longer actively marketed. Its other insurance products include individual life and corporate-owned life insurance, reinsurance pools and management operations, group pension, health insurance, and individual annuities. The Corporate segment includes investment income on corporate assets not specifically allocated to a line of business, interest expense on corporate debt other than non-recourse debt, and certain other corporate income and expense not allocated to a line of business. The company was founded in 1848 and is headquartered in Chattanooga, TN.