Strategic planning is about why things happen; usually top managers like a chief executive officer make strategic plans so it serves as the framework for lower-level planning. These kinds of plans are used for long term decisions; it is a basis for the company. Strategic plans determine where the company will be in two, three, five, even ten years ahead. For example how a company aims to increase annual profits.
Tactical planning is about what is going to happen. Tactical plans help strategic plans by translating them into particular plans related to a special area of the organization