What does "briefly" mean when used in a crossword puzzle clue?

I know what the word briefly means, but just not what exactly they mean when it is used at the end of a crossword puzzle clue preceded by a comma. As used in the clue "Desert Storm grub, briefly" I have seen it used a few times in crossword puzzles. I think the answer to this one is "MRE" (Meal Ready to Eat), which leads me to believe that it's asking for an abbreviation, but I'm just not sure.

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I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.