The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally.
The United States Department of Defense (DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising the five U.S. armed services, the Army; Navy; Marines; Air Force; Space Force; the Coast Guard for some purposes, and related functions and agencies.
The United States Department of Homeland Security (DHS) is the U.S. federal executive department responsible for public security, roughly comparable to the interior or home ministries of other countries.
The Department of Transportation (DOT) is responsible for planning and coordinating federal transportation projects. It also sets safety regulations for all major modes of transportation.
