What were the Royal Navy Battleships, that were considered the first fast battleships and were used in WWI and WWII?
HMS Warspite (03):  Her thirty-year career covered both world wars and took her across the Atlantic, Indian, Arctic and Pacific Oceans. Queen Elizabeth-class battleship: The "Queen Elizabeth"-class battleships were a class of five super-dreadnoughts of the Royal Navy commissioned in 1915–16. Queen Elizabeth-class battleship:  These battleships were superior in firepower, protection and speed to their Royal Navy predecessors of the "Iron Duke" class as well as preceding German classes such as the "König" class , although the corresponding "Bayern"-class ships were competitive except for being 2 kn slower.
Queen Elizabeth"-class battleships