Definition of strategy
This is a collection of definitions of what strategy is and isn’t.
Business strategy boils down to making a choice your competitors wouldn't. If you haven't, you don't have a strategy, you're just competing on quality of execution. @miketrap, 2018
Manipulating the environment to your advantage is the essence of strategy. 
Strategy is no more, and no less, than the discipline of making good choices in order to succeed. 
- Aron, Dave. The Essence of Strategy. CreateSpace Independent Publishing Platform, 2016.