Non-Perturbative Yang-Mills from Supersymmetry and Strings, Or, in the   Jungles of Strong Coupling
  I summarize some recent developments in the issue of planar equivalence between supersymmetric Yang-Mills theory and its orbifold/orientifold daughters. This talk is based on works carried out in collaboration with Adi Armoni, Sasha Gorsky and Gabriele Veneziano. 
M. Shifman