Three types of smoke generating mixtures had been prepared using locally available starting materials. These mixtures were used in production of field smoke pots for screening and camouflage purposes, especially for military and strategic targets. The scope of effectiveness of screening was directed against Laser and thermal sensors, as well as against visible light sensors. The following factors which affect the smoke mixture had been studied during this work; 1- Effect of percentage of each ingredient in the composition on burning time, smoke cloud area, and period of Flame appearance. 2- Thermal stability of the mixtures. 3- Effect of bulk density upon burning time. 4-ErTect of smoke pot design and size upon burning time and smoke cloud area. The optimum three mixtures which met the required specification were obtained. The first mixture was designed to screen the visible light. The second one was for visible and thermal radiation screening, and the third mixture screened Laser (1.06 μm, 10.6 /μm} wavelength, IR (3-5 μm wavelengths and normal visible light.