National Coast Guard Day observed annually on August 4. This is a day set aside to celebrate and honor the courageous work of the Coast Guard. The United States Coast Guard is one of the five US Armed Forces. It is a maritime, military and multi-missioned service.
This observance commemorates the anniversary of the founding of the U.S. Coast Guard as the Revenue-Marine in 1790. On August 4, 1790 Secretary of the Treasury Alexander Hamilton established the Revenue-Marine to serve as an armed customs enforcement service.