Well, quite. Whether or not the blinding flash that etches your shadow into the nearby wall is the result of fusion or fission is largely irrelevant to the victim.
It is of some relevance in terms of the technical competency of the regime however. H-bombs are harder to make and miniaturise than fission ones. If they've managed to get to missile mountable H-bomb level technology already they've done it pretty damn quickly relatively speaking - makes you wonder if they've been getting help from somewhere for instance.