Strategy (Greek "στρατηγία"—stratēgia, "art of troop leader; office of general, command, generalship") is a high level plan to achieve one or more goals under conditions of uncertainty. Strategy is important because the resources available to achieve these goals are usually limited.

Henry Mintzberg from McGill University defined strategy as "a pattern in a stream of decisions" to contrast with a view of strategy as planning while Max McKeown (2011) argues that "strategy is about shaping the future" and is the human attempt to get to "desirable ends with available means". Dr. Vladimir Kvint defines strategy as "a system of finding, formulating, and developing a doctrine that will ensure long-term success if followed faithfully."

Source: Wikipedia