There’s one annoying trend I see whenever a particular topic comes up. This problem is born of small, short-sighted thinking, and an overdose of Hollywood romanticizing of the topic. I’ll tell you the topic after a bit of explanation. There are three general levels in planning: Logistics, strategy, and tactics. Tactics are about what you’re doing at the moment of a struggle with what you have on hand. In military terms, that means what you’re doing in a particular battle or skirmish. Strategy is the next level up, and it’s about how you achieve bigger goals through those individual battles.
I recall a show about Hannibal’s attack on Rome, and from that depiction, it looked to me that Hannibal was a tactical genius and a strategic idiot. He could beat Rome’s armies out in the open quite consistently and even while outnumbered, demonstrating his tactical ability. It didn’t do him any good, however, because he apparently failed to think about what he’d do once he had gotten to Rome: He wasn’t equipped to put the city under siege. Rome’s armies outside the city could keep their distance while skirmishing with Hannibal’s foragers to slowly starve and demoralize the rest of his army.
That brings us to the next level: Logistics. Plans need resources and support. In military terms, soldiers need food, tools, weapons, ammunition, transportation, and so on. Logistics is about how you get those resources where you need them. Good tactics and strategy make the most of what you have, but without supply lines, there’s a limit to what you can do. If you can’t feed and equip your soldiers, it’d be insane to go to war.