Argo Group International Holdings is a holding company. Through its subsidiaries, Co. is an international underwriter of insurance and reinsurance products in the property and casualty market. Co.'s segments are: U.S. Operations, which underwrites primary and excess casualty, property, and other coverage for risks and/or distressed businesses that fall outside of the insurance market's risk appetite; and International Operations, which engaged in insurance and reinsurance risks worldwide through the broker market, focusing on property insurance, property catastrophe reinsurance, primary/excess casualty and other liability insurance.