You will get some idea of what logistics is, from the fact that, in the 1991 Gulf War, the US and allies airlifted half a million people and over half a million tonnes of materials over 12,000 km and moved additional 2.3 million tonnes of equipment by sea, in a short time frame. That kind of movement is more than physical handling. That is logistics.
Wars have been won and lost through logistics capability or lack of it. Generals have understood the importance of logistics since early days, but the business has learnt it fairly recently. And the logistics capability gives an edge to the business.