INTRODUCTION This paper is an assignment for the course SIS 803. It intends to explain the concept of Strategy, Techniques and Tactics. It also relates these concepts to Security and Intelligence. National Security Strategy of the United States and Nigeria are talking points in this paper. DEFINITION OF CONCEPTS Strategy The business dictionary defined strategy as an established, habitual, logical, or prescribed practice or systematic process of achieving certain ends with accuracy and efficiency, usually in an ordered sequence of fixed steps. It is also described as a high level plan to achieve one or more goals under conditions of uncertainty. Fred Nickols in his book (Strategy: Definitions and Meaning) stated "B.H. Liddell Harts" definition of strategy. Lindell Hart definedmilitary strategy as "the art of distributing and applying military means to fulfil the ends of policy (p.335)." Reading further in Nickols book, he gave Henry Mintzberg's definiti...