For military usage, containers could be built each of which would be 1/3 the length of a standard container. 3 of them could be clamped together and shipped and moved as a standard container. On arrival at the destination shipping port, they would be separated and placed on a 5 ton truck for resupplying forward units.
A standard container is 8 feet wide and 9 feet high. For military usage, they would be 8 feet wide and 6 1/2 feet high, allowing an internal height of 6 feet, the remainder being structure. It would be a bit of a head knocker but soldiers wear helmets.
The advantage is that the packaging and sorting would be done in the U.S., simplifying logistics and allowing fewer logistic personnel being needed at the forward location.
The one one drawback is that the density of cargo might be lower to avoid overloading the truck. That would mean less cargo in each 3 set than a standard container, which would require more containers and more ships, although more containers could be shipped with each of lower height. The stacked height of containers,and the raised center of mass they create, limits container carriage on ships. Additionally, 4 cargo boxes rather than 3 could be in the length of 1 container rather than 3.
The other weak point is that the clamps must be highly reliable or there will be a significant risk of the boxes separating and being dropped when lifted by cranes.
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