The caption implies that this is from 1993, but it's a much more recent crop of cadets on a visit to Vares later.
Not necessarily. Here it is:
> Cadets view the sign on the Nordbat 2 school in Vareš and testify of the city's appreciation of the Swedish UN Federation's efforts in autumn 1993. (Johan Nordén/Försvarsmakten)
That must be intended to say the appreciated efforts took place in autumn 1993. But yeah, somewhat ambiguous.
> but it's a much more recent crop of cadets on a visit to Vares later.
Kind of a pilgrimage? If the pic was relatively recent at the time of that blog post (September 2017), many (most?) of those cadets probably hadn't even been born in 1993.