Why Do We Need A Space Force

This Monday we planned on talking to Ronald Matson. He will not be with us tonight. We talked with Ron back in February where he talked about the US having had a Space Force for many years. Tonight we will talk about why we would want a Space Force? Will it be for military purposes, will it be for commercial purposes or will it be used for both? What technology do they use for propulsion? How can these things be?