  We construct a general nonabelian (1,0) tensor multiplet theory in six
dimensions. The gauge field of this (1,0) theory is non-dynamical, and the
theory contains a continuous parameter $b$. When $b=1/2$, the (1,0) theory
possesses an extra discrete symmetry enhancing the supersymmetry to (2,0), and
the theory turns out to be identical to the (2,0) theory of Lambert and
Papageorgakis (LP). Upon dimension reduction, we obtain a general ${\cal N}=1$
supersymmetric Yang-Mills theory in five dimensions. The applications of the
theories to D4 and M5-branes are briefly discussed.

High Energy Physics - Theory