DFARS (Defense Regulation Acquisition Supplement) is a set of cybersecurity regulations that countries must adhere to in order to work as defense contractors or suppliers for the United States Department of Defense. Companies from DFARS-compliant countries can enter into contracts with the American military to supply equipment and materials.
Australia is known for having one of the largest reserves of copper in the world, so it should come as no surprise that copper products are commonly sold to the American military. Australian companies also supply some computer parts and systems to the American military.
Belgium is one of America's most important partners under the DFARS regulations. It may be surprising because Belgian citizens face strict firearms laws, but Belgian company Fabrique Nationale is one of the world's leading firearms manufacturers. It supplies many firearms to the American military, especially to special forces units.
Canada's geographical proximity to the USA means that Canadian companies often do business with the American military under the provisions of DFARS. General Motors Defense is one of the largest American military contractors in Canada. GM Defense makes many armored vehicles for the American military, including the Stryker.
The Czech Republic, like Belgium, is known for being home to some of the leading firearms manufacturers in the world. One of the Czech Republic's biggest American military contractors is the firearms manufacturer CZ.
The United States military began to re-establish business relationships with German companies shortly after the end of World War II. This led to Germany being added to the list of DFARS-compliant countries. German automobile manufacturers make some of the American military's vehicles. However, Germany is best-known for supplying firearms to the United States military. Two of the world's biggest and most successful firearms companies, Sig Sauer and Heckler & Koch, are headquartered in Germany. Sig Sauer is known for supplying handguns to the American military, while Heckler & Koch is known for its submachine guns.
Israel is one of America's closest allies, so it's no surprise that it's on the list of DFARS countries. Israeli companies are known for supplying weapons guidance systems. Israel also supplies a limited number of firearms, such as the Uzi, to the American military.