A quick note before we launch into the main post - The 'CONCEPTS:' series is intended to be a range of articles analysing and discussing certain commonly used (and sometimes misunderstood) terms and army building techniques, such as Balance, Redundancy and Duality. I have built up my understanding of these concepts from a large variety of different sources and I certainly do not claim to be the originator of these various ideas! I find writing the articles helps me clarify my own thinking, and so they are directed at myself as much as anyone else. Anyway, onto the main event!
