Strategy comes from stratēgos, an Athenian general. It's the big plan; tactics are the moves.
Stratos (army) + agein (to lead). A stratēgos was an Athenian general, elected each year. Strategy was the general's art: the big plan, not the single battle.
Sam Houston's retreat before San Jacinto was a strategy. The surprise attack was the tactic.
Strategy is where we fight. Tactics is how. Picking which market to win is strategy.
Practice it in Skepsis