  Two models which generate the supersymmetric Grand Unification Scale from the
strong dynamics of an additional gauge group are presented. The particle
content is chosen such that this group confines with chiral symmetry breaking.
Fields that are usually introduced to break the Grand Unified group appear
instead as composite degrees of freedom and can acquire vacuum expectation
values due to the confining dynamics. The models implement known solutions to
the doublet-triplet splitting problem. The SO(10) model only requires one
higher dimensional representation, an adjoint. The dangerous coloured
Higgsino-mediated proton decay operator is naturally suppressed in this model
to a phenomenologically interesting level. Neither model requires the presence
of gauge singlets. Both models are only technically natural.

High Energy Physics - Phenomenology