Is your company contracted to do work on US military bases or on any land occupied by the US for military purposes? If so, you are required by the US State Depatment to carry this insurance. In fact, today, almost any contract with an agency of the U.S. government, for work outside the U.S., whether military in nature or not, will likely require Defense Base Act coverage.
Established in 1941, the primary goal of the Defense Base Act was to cover workers on military bases outside the United States for accidental death and disability. The act was amended to include public works contracts with the government for the building of non-military projects such as dams, schools, harbors, and roads abroad. A further amendment added a vast array of enterprises revolving around the national security of the United States and its allies.