T-duality of large N QCD

We argue that non-supersymmetric large N QCD compactified on T^2 exhibits properties characteristic of an SL(2,Z) T-duality. The kahler structure on which this SL(2,Z) acts is given by $m\mathrm{/}N+i{\mathrm{\Lambda }}^{2}A$, where A is the area of the torus, m is the 't Hooft magnetic flux on the torus, and ${\mathrm{\Lambda }}^2$ is the QCD string tension.