Yep. PR and Haiti both had the same issue. Getting it all there is one part, supporting logistics over the shore is another part. The US Army has entire units dedicated to the art of onward movement, and we spend a whole bunch of effort on it.
Lots of times in non-combat areas however, that part of the mission is given to other agencies due to ......reasons. Those other agencies almost always underestimate the challenge of logistics in non-permissive environments and muck it all up.