"The High Energy Physics (HEP) European scientific community has developed cutting-edge, large-scale facilities that make it a world leader. Particle Physics Programmes in Europe are attracting participation of groups from non-European countries, in particular from Latin America. In the reciprocal direction, the Pierre Auger Observatory for High Energy Cosmic Rays, recently established in Argentina, receives a large European participation. The Latin American HEP community is composed of about 1000 physicists and engineers, more than a half young physicists, graduates and PhD's. In Europe, Latin American physicists collaborate with Research Institutions, Universities and with the European Laboratory for Particle Physics (CERN). Current trend is to increase participation in CERN, in view of the start-up of the Large Hadron Collider (LHC). Large scale LA-Europe collaboration is recent, however, and needs to be consolidated. The EPLANET program will support visits from Argentina, Brazil, Chile and Mexico to CERN and other European Institutions and from European countries to the AUGER Observatory, with short exchanges (1-2 months) for senior and longer exchanges (2-12 months) for junior investigators, for a total of about 1800 months. Visits will be used to perform research on the LHC and AUGER experiments, inside well established groups. Scientific results thereby obtained will parallel advanced training and acquisition of new techonologies in accelerator and detector physics, medical physics and ICT. EPLANET will foster the community and develop internal Latin-American collaboration to reach the critical scientific mass and profit from the educational, technological and industrial impact of HEP. The detachment of European senior and junior scientists in Latin-America will strengthen research partnership between Latin America and Europe. EPLANET will foster a sustainable collaboration between Europe and Latin America in HEP and associated technologies."