It's more semantics than anything else, but 4 or 5 squads isn't really STRATEGY, is it? It's tactics.
I disagree completely. The most strategic, and by such a measure that I have a hard time using strategy to describe any other game, game in history is Myth/Myth 2.
This was a game where unit numbers ranged from ~3 to ~500, with the strategy found at the low end (especially in terms of units per player).
The act of being able to replace a unit has an incalcably negative impact on strategy. Most games are reduced to build quickly and after that rock papers scissors.
I eat pasta!