Admiral of the Navy
Admiral of the navy is a senior-most rank of a naval service.

Some navies use the term admiral of the navy as a title bestowed upon a fleet admiral or other senior naval official. During the Second World War
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, the German
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

The Kriegsmarine was the name of the German Navy during the Nazi regime . It superseded the Kaiserliche Marine of World War I and the post-war Reichsmarine. The Kriegsmarine was one of three official branches of the Wehrmacht, the unified armed forces of Nazi Germany.The Kriegsmarine grew rapidly...

referred to the senior most grand admiral
Grand Admiral
Grand admiral is a historic naval rank, generally being the highest such rank present in any particular country. Its most notable use was in Germany — the German word is Großadmiral.-France:...

 as an admiral of the navy, known in German as oberbefehlshaber der Kriegsmarine.

George Dewey
George Dewey
George Dewey was an admiral of the United States Navy. He is best known for his victory at the Battle of Manila Bay during the Spanish-American War...

 is the only American ever promoted to the U.S. rank of admiral of the navy
Admiral of the Navy (United States)
Admiral of the Navy is a rank in the United States Navy that has only been held once in history, by George Dewey. In recognition of his victory at Manila Bay in 1898, Congress authorized a single officer to hold the rank of Admiral, and promoted Dewey to this rank in March 1899...

. He was promoted on March 24, 1903, retroactive to March 2, 1899. In 1944 the U.S. Navy Department declared the newly created five-star rank of fleet admiral to be junior to George Dewey's rank.
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