If we're going to play this semantics game, then the most effective weapon on the modern battlefield is food. Without food, your people can't do any of the other things they're there to do. Take away concrete, and your military can still do plenty of stuff. Take away food and your military ceases to exist.
It was an informative article, oddly an issue never covered in the mainstream press.
Experts do say that logistics is one of the most important factors in warfare. An army marches on its stomach, Napoleon reputedly said.
Imagine feeding 20,000 people on the march: That's 40-60,000 meals per day, who knows how much water, plus waste - all shipped through war zones. And that ignores other supplies: Fuel, bullets, parts, medicine, etc.
And that's the problem. Men and women keeping ... fighting .. for causes that aren't there. American soldiers are duped into thinking they're fighting for some noble cause when they're just the strong arm of a corrupt system that continues to blaze on with wars no matter who is elected.
Conniving people to fight is the only way to wage war. It's also how we make money. It's also how we make slaves.
Then how you allocate and deploy food is a measure of where you could potentially resist a seige.
On a tactical level, mealie bags and biscuit boxes were famously used to defend a British outpost in the Zulu wars. :)
https://en.wikipedia.org/wiki/Meal,_Ready-to-Eat
i have no military experience but i'm guessing this is actually one of the easiest things to strategically deploy. a day's worth of ammo for a platoon probably weighs a few hundred pounds. a day's worth of food is probably like 10 pounds.
see: restrepo, korengal films.