Phenomena related to the nonperturbative aspects of strong interactions at the LHC are discussed with the emphasis on elastic and inelastic, soft and hard diffraction processes. Predictions for the global characteristics and angular distributions in proton-proton collisions with elastic and multiparticle final states are given. Potential for discovery of the novel effects related to the increasing role of the elastic scattering at the LHC energies and their physical implications in diffractive and multiparticle production processes are reviewed.

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