The first basic way to adapt is to anticipate, by which we mean to introduce new methods, schemes, or techniques for future use. In order to anticipate, we must be able to forecast future actions, at least to some extent. Our forecasts are usually based on past experiences. Often a forecast involves considering what we learned through trial and error in training, exercises, or actual combat. An excellent example of anticipation is the Marine Corps' development of amphibious warfare techniques at Quantico during the 1920s and 1930s. These techniques proved to be essential to success in World War II, both in the Pacific and in Europe.
All planning at all echelons is a form of anticipatory adaptation — adapting our actions in advance. Another important tool for tactical adaptation is the use of immediate-action drills or standing operating procedures. These are practiced, pre-designed, generic actions which cover common situations. Having a collection of these tools at our disposal allows us to react immediately in a coordinated way to a broad variety of tactical situations. Immediate-action drills do not replace the need for tactical judgment; they merely provide a way to seize initiative in the early stages of a developing situation until we can take more considered action. They provide the basis for adaptation.