Mechanized Infantry Perceptions 2010

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Or you can use light infantry to their strengths. Dominate areas where vehicles are unsuitable (the mountains inside Afghanistan), conduct persistent, economy-of-effort security operations around rural populations and fight the enemy on his own terms (light, away from predictable routes and in areas he doesn't expect it).

I was reading some comments made by Mike Sparks (I don't know much about him, but he seems to be controversial) regarding infantry and it's use. He doesn't seem to have much use for light infantry claiming only about 10% of the earth's land mass is not easily accessible, which would require true light infantry. His reasoning seems sound.