NOVELTY - The unitized membrane electrode assembly (110) has an anion exchange polymer electrolyte membrane (112) that is disposed between a hydrogen electrode (114) and an oxygen electrode (116). An anion exchange polymer electrolyte binder is contained in each of the hydrogen electrode and the oxygen electrode. The electrode assembly is effective in an alkaline environment for fuel cell operation and water electrolyzer operation. The hydrogen electrode includes a bi-functional electrocatalyst or a mixture of electrocatalysts for performing hydrogen oxidation and/or evolution in alkaline media.    USE - Unitized membrane electrode assembly for reversible alkaline membrane fuel cell-water electrolyzer used for generating electric power and hydrogen fuel.    ADVANTAGE - The unitized membrane electrode assembly facilitates the use of a single, bi-functional electrocatalyst for oxygen reduction and evolution allowing for a single-unitized device capable of running in fuel cell mode or water electrolyzer mode. The unitized membrane electrode assembly is operated in an alkaline environment rather than an acidic environment enables the use of non-platinum group electrocatalyst in the electrode layers. The operation in alkaline environment mitigates the need for platinum group metals, which reduces the costs when compared to conventional acidic fuel cells.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a cell of a unitized reversible anion exchange polymer membrane fuel cell-water electrolyzer;    (2) a reversible anion exchange polymer membrane fuel cell-water electrolyzer system;    (3) a method of alternatively producing electric power and generating hydrogen; and    (4) a method of operating a reversible anion exchange polymer membrane fuel cell-water electrolyzer.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic diagram of a unitized membrane electrode assembly for a reversible alkaline membrane fuel cell-water electrolyzer.    Unitized membrane electrode assembly (110)    Anion exchange polymer electrolyte membrane (112)    Hydrogen electrode (114)    Oxygen electrode (116)    Load/source (120)