  We have carried out a comprehensive multiwavelength study of Bright-Rimmed
Globule TC2 in the Trifid Nebula using the IRAM~30m telescope, the VLA
centimeter array and the Infrared Space Observatory (ISO). TC2 is one of the
very few globules to exhibit signs of active ongoing star formation while being
photoevaporated. The study of the kinematics shows that TC2 is currently
undergoing an implosion driven by the ionization field. The physical structure
of the molecular core, the Photon-Dominated Region and the ionization front are
characterized. The properties of the PDR are in good agreement with some recent
PDR models. The molecular emission suggests that the star formation process was
probably initiated a few 0.1 Myr ago, in the large burst which led to the
formation of the nebula. The impact of photoionization on the star formation
process appears limited.
