One way is as lermfish advises. 
Two very good war-focused civs are Montezuma and the Mongols. Shaka is also good for an early rush, but the AI plays him better in the early game than I can.
Montezuma, with that alter, is an amazingly effective early rush candidate.

Two very good war-focused civs are Montezuma and the Mongols. Shaka is also good for an early rush, but the AI plays him better in the early game than I can.

Montezuma, with that alter, is an amazingly effective early rush candidate.
War Chariots AWAY!
(I tell myself I'm too deliberate, but, truth be told, I hate to be beaten.) Those clues are gleaned from their talk here.
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