In no operation is systematic scanning of the terrain ahead for selection of position and route of approach better rewarded. Silhouette against the skyline is a major problem. Cooking with its inevitable accompaniment of shine, smoke, and movement is a constant danger to mass movement. Insect pests and fatigue diminish alertness, and bare skin, in addition to being a health hazard, also shines. Likewise belt buckles, luminous watches, and other shiny objects are special hazards.
Dark clothing is essential.
Footprint tracking is common. Concealment of mules is practically impossible where overhead cover is not available. In such circumstances, dispersion and great effort are necessary as the animals trample terrain and eat foliage. In semi-open or open terrain, track planning is essential prior to vehicle movement. Use of natural cover, supplemented when necessary by drapes, is essential.