by78
General
Which one? The former assumes that one side or the other has sufficient air/naval control to successfully conduct and maintain an amphibious operation, but insufficient control to deny it to an adversary—a very fine line, if it even exists at all. I certainly can't think of any plausible battlefield which does not hugely favor one side or the other.
The latter is a given from the enormous disparity in resources put into training/equipment/etc on both an individual and army level.
Not going to derail the thread by going into possible conflicts in the near or medium term. The job of the military is to be prepared for a wide range of conflict scenarios, big or small, short-term or long-term, and not be limited to a select possible few that garner the most headlines and speculation. The cost of a handguard with a basic metal rail is 30 to 40 USD at most. Multiply that by a few million spread out over the next 20 to 25 years (QBZ-191/192s are stated to be the main service rifle over that timespan), the total bill is relative immaterial compared to the overall budget: less than a single 052D destroyer. The cost of infantrymen killed or injured because their accessories won't hold zero is in all probability (much) greater. There is prioritizing budgets wisely, then there is sheer bean counting stupidity.