Ask HN: resources about strategy

These last few weeks, this site has seen many discussions related to strategy (Magnus Carlsen, Chess, Go, John Boyd,...). In particular, many have pointed out the difference between 'tactics' and 'strategy'. The consensus seems to be that the former is related to winning a battle and the latter is related to winning the war.

I'm a novice but quite interested in the subject. Are there any recommended books, discussion forums,... on all kinds of conflict (military, business), identifying and exploiting advantages and "keeping your eyes on the prize" (having an end goal in mind while still using the right tactic for the present battle)?