The excellent quality kaon beam provided by the
DA\PhiΦNE
collider of LNF-INFN (Italy) together with SIDDHARTA/SIDDHARTA-2 new
experimental techniques, as very precise and fast-response X-ray
detectors, allow to perform unprecedented measurements on light kaonic
atoms crucial for a deeper understanding of the low-energy quantum
chromodynamics (QCD) in the strangeness sector. In this paper an
overview of the main results obtained by the SIDDHARTA collaboration, as
well as the future plans related to the SIDDHARTA-2 experiment, are
discussed.