The key to success in land navigation is to know your location at all times. With this basic knowledge, you can decide what direction and what distance to travel.
a. Known Position. Most important of all is the initial location of the user before starting any movement in the field. If movement takes place without establishing the initial location, everything that is done in the field from there on is a gamble. Determine the initial location by referring to the last known position, by grid coordinates and terrain association, or by locating and orienting your position on the map and ground.
b. Known Point/Known Distance (Polar Plot). This location can be determined by knowing the starting point, the azimuth to the desired objective, and the distance to it.
c. Resection. See Chapter 6.
d. Modified Resection. See Chapter 6.
e. Intersection. See Chapter 6.
f. Indirect Fire. Finding a location by indirect fire is done with smoke. Use the point of impact of the round as a reference point from which distances and azimuth can be obtained.