In EndWar players represent one of three national armies (U.S. Russia or Europe) and participate in massive multiplayer battles. EndWar can be played almost entirely by voice command and also features a customizable army, as well as the ability to fight in various battlefields and cities around the world.
I like RTS games like Warcraft and Starcraft but this game didn't do it for me. I just played the first couple of levels and got so bored I just returned this game right away.
I'm sure this game can be quite fun once you get good at it but it can also be hard to learn. It's like a RTS but you don't build a base (as far as I played) and you command everything by speaking into a mic. It requires a lot of thought as strategy but although I usually enjoy RTS games, this one didn't really work for me. If you want to try an interesting voice driven, first person RTS then go for it, otherwise... don't.
RTS = real time strategy.