One of my minor hobbies is studying what and how a Roman legion was equipped with and how they were supplied/foraged. The Romans knew the value of logistics something armies seem to keep relearning even today see todays headlines.
The Roman Legion camp was a marvel for it’s defense structure and how quickly it could be built. It’s standardization was a brilliant concept that lasted for at least 1,000 years, think about that.
Yup, they had it going on. From the Roman conquest of Ostia to the final fall of Constantinople the span is closer to 2000 years. Of course, Rome had to learn everything the hard way and due to invasions by the Gauls and Carthaginians, and various reforms were instituted by successful generals down the centuries.
The size of the Claudian invasion of Britain was gleaned in recent years by surviving records of how many mules they took along, something like that.