Which award citation starts with "For exceptionally meritorious service to the Government of the United States in a duty of great responsibility..."?

The Distinguished Service Medal citation begins with the phrase "For exceptionally meritorious service to the Government of the United States in a duty of great responsibility." This award is one of the highest honors bestowed upon members of the Armed Forces and is given in recognition of exceptionally meritorious service in duty of great responsibility, demonstrating a high standard of excellence above and beyond the call of duty.

The citation reflects the significant contributions and efforts made by the recipient that have positively impacted the effectiveness of military operations or the lives of others, often during notable achievements or long-standing commitment to service. This context sets the Distinguished Service Medal apart as an award intended for outstanding accomplishments over an extended duration rather than actions during a single event or act of heroism, which other medals like the Bronze Star or Silver Star would typically recognize.