Argo Group International Holdings, Ltd. is an underwriter of specialty insurance and reinsurance products in the property and casualty market. The Company operates through four segments: Excess and Surplus Lines, Commercial Specialty, International Specialty and Syndicate 1200. Excess and Surplus Lines segment carriers focus on risks that the standard (admitted) market is unwilling or unable to underwrite. The Excess and Surplus Lines segment consists of two operating platforms: Colony Specialty and Argo Pro. Commercial Specialty segment provides property, casualty and surety coverages designed to meet the insurance needs of businesses within certain markets. International Specialty segment underwrites insurance and reinsurance risks. The Syndicate 1200 segment underwrites around the world property, specialty and non-United States liability insurance.