tactics and strategy - the difference
Polish version still can be read here.
What is the difference between tactics and strategy?
Again drawing on my notes that I've made myself while reading the forum taktyka.net
I recommend reading the forum. Especially I like to read such people as Barbarossa@, Jakub and Bartek. Thank you, gentlemens (and perhaps the ladies, nevertheless these are online pseudonyms).
The division is really simple:
strategy: We define the goal.
tactics: We make everything to achieve it.
The rest is just a matter of scale and amount of people that commander have under his command.