There's huge overlap, but if you want to differentiate them, then you can do it like so: A strategy is high level stuff. Typically vague and open to interpreta

There's huge overlap, but if you want to differentiate them, then you can do it like so: A strategy is high level stuff. Typically vague and open to interpretation. It's about general approach and big decisions, core principles and goals. Tactics/operations is the details given a particular situation or project. They can be grounded in specific steps to take. A plan can be understood as formulating tactics and bridging the gap between strategy and tactics. You may have multiple plans that you pull out given some events and circumstances. I think there's overlap with the term 'protocol' as well. As for good historical examples you may look at military strategy. The most consistent and successful ones are often the most boring: robust logistics and well-provisioned forces, cultural assimilation, high discipline/training, mass produced equipment, specialized roles, competent officers etc. Those are broad strokes and not necessarily specific implementations (even though they matter too). Look at the Romans or Ottomans for good examples.