If you are referring to the rank of "Fleet Admiral of the United States Navy", which is the equivalent of a 5-star general, then there have been only 4 in the history of the US Navy (many more in other country's navies):
George Dewey was promoted to "Admiral of the Navy" in 1903 (in recognition of his service in the Spanish-American War), which technically out-ranks the "Admiral of the Fleet", but it is a historical anomaly.
See the link below for more information.
4
4
There is only one Admiral in the Indian Navy. But there are quite a few Vice-Admirals and Rear Admirals,these are below the rank of Admiral and are all under the Admiral only. Shailesh Mehta 9425082058
(As this question is in the WW2 category, this answer is specific to WW2 combatants) "fleet admiral" can refer either to a role, or a rank. As a rank, "fleet admiral" was formally known as "Admiral of the Fleet" in the Royal Navy, Soviet Navy, "Großadmiral" in the Nazi Kreigsmarine, "Fleet Admiral" in the US Navy, and Marshal-Admiral (Gensui) in the Imperial Japanese Navy. In all cases, it was the highest naval rank in each country. Most countries seldom had more than one or two persons serving at that rank at one time. The exception was the US Navy, which had 4 serving Fleet Admirals by the end of WW2. The duties of someone filling the rank of Fleet Admiral generally would be considered Logistical and Grand Strategy - that is, they were almost exclusively shore-bound commanding vast collections of fleets of ships in far-flung campaigns, or heavily involved in naval production and procurement. As a functional role, "fleet admiral" generally refers to the commanding admiral of a specific fleet. It can refer to a variety of ranks of admiral, but, was generally not applied to anyone not at least of admiral rank; those of less than admiral rank who commanded collections of ships were usually afforded the title "commodore". If there were several admiral-ranked personnel in a fleet, "fleet admiral" would be the moniker applied to the one in command (usually the most senior, but not necessarily, depending on circumstances). The role of fleet admiral is a tactical command - it involves directing the operations of the fleet, according to the grand strategy directed by the naval command authority. A fleet admiral would have wide latitude of both action and authority to accomplish their assigned mission(s). Their command usually included not just naval vessels, but transport vessels, naval bases, marines, and sometime even non-Navy assets in the area of operation.
Admiral Arleigh Burke and Admiral Hyman Rickover
The Japanese leaders were the Japanese Combined Fleet commander Admiral Isoroku Yamamoto and also admirals or captains Chuichi Nagumo, Nobutake Kondo, Ryusaku Yanagimoto and Tamon Yamaguchi. (the final two were killed in the battle) For the US, Admiral Chester W. Nimitz was the US Pacific Fleet commander, and fleet admirals included Frank J. Fletcher and Raymond A. Spruance.
Probably the 7th Fleet.
190
one
I'm not sure of the 2009 figures but back in May 1805 there were 144 Admirals consisting of 46 Admirals, 36 Vice Admirals and 62 Rear Admirals.
Admirals do!
There is only one Admiral in the Indian Navy. But there are quite a few Vice-Admirals and Rear Admirals,these are below the rank of Admiral and are all under the Admiral only. Shailesh Mehta 9425082058
none
The Navy doesn't have Generals - they have Admirals.
Texas doesn't have a Navy or an Army. What they have is a State Guard Force, which consists of both land and maritime units. Their rank has no standing in the federal forces.
The branch of the US armed forces that has admirals is the Navy. The armed forces is made up of the army, air forces and the navy.
Two fleets; western fleet and eastern fleet.
The US Army has 99 Major (2 star) Generals on active duty.
The Navy has the fleet & that will never be publicized for obvious security reasons.