The Latin-American Conference on High Energy Physics: "Particles and Strings II" aims to bring together scientist of Europe and Latin-american countries with the purpose of develop and strengthen scientific links and collaborations between the various physics communities. The program of the conference will include a set of review lectures on the following topics: Physics of the Standard Model and Beyond, Quantum field theories and gravitation. Theories of fundamental interactions: QCD, Nuclear physics, Astrophysics, Dark matter. LHC: Experiments and first signatures. String phenomenology, amplitudes, large extra dimensions. String Theory, D-branes, holography, black hole physics. The program will also includes informal talks given by young scientist from Latin-American countries and short talks by other participants in the meeting. Open discussions on scientific areas of common interests will be included.